Add L10N comments to several unclear messages.

Updating Japanese translation, I found that some of the updated messages
were a little hard to understand without reading the code.

Add comments to some messages I nearly translated in a wrong way.

1 files changed, 3 insertions, 0 deletions

diff --git a/crypt-gpgme.c b/crypt-gpgme.c
index f2af8986..47be23bb 100644
--- a/crypt-gpgme.c
+++ b/crypt-gpgme.c
@@ -1383,6 +1383,9 @@ static void print_smime_keyinfo (const char* msg, gpgme_signature_t sig,
   else
   {
     if (sig->fpr == NULL)
+      /* L10N: You will see this message in place of "KeyID "
+         if the S/MIME key has no ID. This is quite an error.
+       */
       state_puts (_("no signature fingerprint available"), s);
     else {
       state_puts (_("KeyID "), s);