Remove unnecessary trailing whitespace

Trim trailing whitespace. It doesn't match OpenSSL coding standards,
AFAICT, and it can cause problems with git tooling.

Trailing whitespace remains in test data and external source.

Backport-of: https://github.com/openssl/openssl/pull/8092

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8134)

10 files changed, 22 insertions, 22 deletions

diff --git a/crypto/bn/asm/ia64.S b/crypto/bn/asm/ia64.S
index d235c45e2d..f7e549123e 100644
--- a/crypto/bn/asm/ia64.S
+++ b/crypto/bn/asm/ia64.S
@@ -48,7 +48,7 @@
 // on Itanium2! What to do? Reschedule loops for Itanium2? But then
 // Itanium would exhibit anti-scalability. So I've chosen to reschedule
 // for worst latency for every instruction aiming for best *all-round*
-// performance.  
+// performance.
 
 // Q.	How much faster does it get?
 // A.	Here is the output from 'openssl speed rsa dsa' for vanilla
@@ -472,7 +472,7 @@ bn_mul_add_words:
 .global	bn_sqr_words#
 .proc	bn_sqr_words#
 .align	64
-.skip	32	// makes the loop body aligned at 64-byte boundary 
+.skip	32	// makes the loop body aligned at 64-byte boundary
 bn_sqr_words:
 	.prologue
 	.save	ar.pfs,r2
diff --git a/crypto/bn/asm/sparcv8plus.S b/crypto/bn/asm/sparcv8plus.S
index fe4699b2bd..831cf21d44 100644
--- a/crypto/bn/asm/sparcv8plus.S
+++ b/crypto/bn/asm/sparcv8plus.S
@@ -154,9 +154,9 @@
   .register	%g2,#scratch
   .register	%g3,#scratch
 # define	FRAME_SIZE	-192
-#else 
+#else
 # define	FRAME_SIZE	-96
-#endif 
+#endif
 /*
  * GNU assembler can't stand stuw:-(
  */
diff --git a/crypto/bn/bn_ctx.c b/crypto/bn/bn_ctx.c
index aa08b31a34..228c8537fa 100644
--- a/crypto/bn/bn_ctx.c
+++ b/crypto/bn/bn_ctx.c
@@ -256,7 +256,7 @@ static int BN_STACK_push(BN_STACK *st, unsigned int idx)
         unsigned int newsize =
             st->size ? (st->size * 3 / 2) : BN_CTX_START_FRAMES;
         unsigned int *newitems;
-        
+
         if ((newitems = OPENSSL_malloc(sizeof(*newitems) * newsize)) == NULL) {
             BNerr(BN_F_BN_STACK_PUSH, ERR_R_MALLOC_FAILURE);
             return 0;
@@ -310,7 +310,7 @@ static BIGNUM *BN_POOL_get(BN_POOL *p, int flag)
     /* Full; allocate a new pool item and link it in. */
     if (p->used == p->size) {
         BN_POOL_ITEM *item;
-        
+
         if ((item = OPENSSL_malloc(sizeof(*item))) == NULL) {
             BNerr(BN_F_BN_POOL_GET, ERR_R_MALLOC_FAILURE);
             return NULL;
diff --git a/crypto/cryptlib.c b/crypto/cryptlib.c
index fb314e365c..06fff16172 100644
--- a/crypto/cryptlib.c
+++ b/crypto/cryptlib.c
@@ -352,9 +352,9 @@ void OPENSSL_showfatal(const char *fmta, ...)
 
     /*
     * TODO: (For non GUI and no std error cases)
-    * Add event logging feature here. 
+    * Add event logging feature here.
     */
-    
+
 #   if !defined(NDEBUG)
         /*
         * We are in a situation where we tried to report a critical
@@ -393,7 +393,7 @@ void OPENSSL_showfatal(const char *fmta, ...)
 #  endif
 # else
     MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONERROR);
-# endif     
+# endif
 }
 #else
 void OPENSSL_showfatal(const char *fmta, ...)
diff --git a/crypto/des/asm/des_enc.m4 b/crypto/des/asm/des_enc.m4
index 4a0d15620c..dad14d4c3c 100644
--- a/crypto/des/asm/des_enc.m4
+++ b/crypto/des/asm/des_enc.m4
@@ -313,7 +313,7 @@ $4:
 	sll	out1, 28, out1            ! rotate
 	xor	$1, local1, $1            ! 1 finished, local1 now sbox 7
 
-	ld	[global2+local2], local2  ! 2 
+	ld	[global2+local2], local2  ! 2
 	srl	out0, 24, local1          ! 7
 	or	out1, local0, out1        ! rotate
 
@@ -1392,7 +1392,7 @@ DES_ncbc_encrypt:
 	add	%o7,global1,global1
 	sub	global1,.PIC.DES_SPtrans-.des_and,out2
 
-	cmp	in5, 0                    ! enc   
+	cmp	in5, 0                    ! enc
 
 	be	.ncbc.dec
 	STPTR	in4, IVEC
diff --git a/crypto/ec/curve448/point_448.h b/crypto/ec/curve448/point_448.h
index 0ef3b8714e..9dabb89090 100644
--- a/crypto/ec/curve448/point_448.h
+++ b/crypto/ec/curve448/point_448.h
@@ -116,7 +116,7 @@ void curve448_scalar_encode(unsigned char ser[C448_SCALAR_BYTES],
 
 /*
  * Add two scalars. |a|, |b| and |out| may alias each other.
- * 
+ *
  * a (in): One scalar.
  * b (in): Another scalar.
  * out (out): a+b.
@@ -135,7 +135,7 @@ void curve448_scalar_sub(curve448_scalar_t out,
 
 /*
  * Multiply two scalars. |a|, |b| and |out| may alias each other.
- * 
+ *
  * a (in): One scalar.
  * b (in): Another scalar.
  * out (out): a*b.
@@ -145,7 +145,7 @@ void curve448_scalar_mul(curve448_scalar_t out,
 
 /*
 * Halve a scalar.  |a| and |out| may alias each other.
-* 
+*
 * a (in): A scalar.
 * out (out): a/2.
 */
@@ -154,7 +154,7 @@ void curve448_scalar_halve(curve448_scalar_t out, const curve448_scalar_t a);
 /*
  * Copy a scalar.  The scalars may alias each other, in which case this
  * function does nothing.
- * 
+ *
  * a (in): A scalar.
  * out (out): Will become a copy of a.
  */
@@ -183,7 +183,7 @@ static ossl_inline void curve448_point_copy(curve448_point_t a,
  *
  * a (in): A point.
  * b (in): Another point.
- * 
+ *
  * Returns:
  * C448_TRUE: The points are equal.
  * C448_FALSE: The points are not equal.
@@ -243,7 +243,7 @@ void curve448_point_mul_by_ratio_and_encode_like_x448(
 /*
  * RFC 7748 Diffie-Hellman base point scalarmul.  This function uses a different
  * (non-Decaf) encoding.
- * 
+ *
  * out (out): The scaled point base*scalar
  * scalar (in): The scalar to multiply by.
  */
@@ -273,7 +273,7 @@ void curve448_precomputed_scalarmul(curve448_point_t scaled,
  * base2 (in): A second point to be scaled.
  * scalar2 (in) A second scalar to multiply by.
  *
- * Warning: This function takes variable time, and may leak the scalars used. 
+ * Warning: This function takes variable time, and may leak the scalars used.
  * It is designed for signature verification.
  */
 void curve448_base_double_scalarmul_non_secret(curve448_point_t combo,
diff --git a/crypto/engine/README b/crypto/engine/README
index 0050b9e509..c7a5696ca1 100644
--- a/crypto/engine/README
+++ b/crypto/engine/README
@@ -26,7 +26,7 @@ algorithm/mode pair are;
      EVP_EncryptInit(&ctx, cipher, key, iv);
      [ ... use EVP_EncryptUpdate() and EVP_EncryptFinal() ...]
 
-(ii) indirectly; 
+(ii) indirectly;
      OpenSSL_add_all_ciphers();
      cipher = EVP_get_cipherbyname("des_cbc");
      EVP_EncryptInit(&ctx, cipher, key, iv);
diff --git a/crypto/engine/eng_lib.c b/crypto/engine/eng_lib.c
index 3ef3aae28a..9e00f2df04 100644
--- a/crypto/engine/eng_lib.c
+++ b/crypto/engine/eng_lib.c
@@ -124,7 +124,7 @@ static int int_cleanup_check(int create)
 static ENGINE_CLEANUP_ITEM *int_cleanup_item(ENGINE_CLEANUP_CB *cb)
 {
     ENGINE_CLEANUP_ITEM *item;
-    
+
     if ((item = OPENSSL_malloc(sizeof(*item))) == NULL) {
         ENGINEerr(ENGINE_F_INT_CLEANUP_ITEM, ERR_R_MALLOC_FAILURE);
         return NULL;
diff --git a/crypto/pem/pem_info.c b/crypto/pem/pem_info.c
index a45fe83001..25dd55e72b 100644
--- a/crypto/pem/pem_info.c
+++ b/crypto/pem/pem_info.c
@@ -297,7 +297,7 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
                 goto err;
             }
 
-            /* Create the right magic header stuff */ 
+            /* Create the right magic header stuff */
             buf[0] = '\0';
             PEM_proc_type(buf, PEM_TYPE_ENCRYPTED);
             PEM_dek_info(buf, objstr, EVP_CIPHER_iv_length(enc),
diff --git a/crypto/srp/srp_vfy.c b/crypto/srp/srp_vfy.c
index f47f6d95cf..f9988abd2d 100644
--- a/crypto/srp/srp_vfy.c
+++ b/crypto/srp/srp_vfy.c
@@ -187,7 +187,7 @@ void SRP_user_pwd_free(SRP_user_pwd *user_pwd)
 static SRP_user_pwd *SRP_user_pwd_new(void)
 {
     SRP_user_pwd *ret;
-    
+
     if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL) {
         /* SRPerr(SRP_F_SRP_USER_PWD_NEW, ERR_R_MALLOC_FAILURE); */ /*ckerr_ignore*/
         return NULL;