remove trailing whitespace

lib/krb5/krb5_encrypt.3

@@ -199,7 +199,7 @@ should be the appropriate key-usage.
 .Fa ivec
 is a pointer to a initial IV, it is modified to the end IV at the end of
 the round.
-Ivec should be the size of 
+Ivec should be the size of
 If
 .Dv NULL
 is passed in, the default IV is used.
@@ -229,7 +229,7 @@ and
 works similarly.
 .Pp
 .Fn krb5_decrypt_ticket
-decrypts the encrypted part of 
+decrypts the encrypted part of
 .Fa ticket
 with
 .Fa key .