autocrypt: Don't use a callback where a constant will do.

  - `str::splitn` takes a callback or a `char`.  Since we are just
    splitting on a `char`, pass it directly.

1 files changed, 1 insertions, 1 deletions

diff --git a/autocrypt/src/lib.rs b/autocrypt/src/lib.rs
index f8d23420..7412214c 100644
--- a/autocrypt/src/lib.rs
+++ b/autocrypt/src/lib.rs
@@ -297,7 +297,7 @@ impl AutocryptHeaders {
 
         for pair in ac_value.split(';') {
             let pair = pair
-                .splitn(2, |c| c == '=')
+                .splitn(2, '=')
                 .collect::<Vec<&str>>();
 
             let (key, value) : (String, String) = if pair.len() == 1 {