gpg-interface: mark a string for translation

Previous commits have marked a number of error or warning messages in
"builtin/fast-export.c" and "builtin/fast-import.c" for translation.

As "gpg-interface.c" code is used by the fast-export and fast-import
code, we should make sure that error or warning messages are also all
marked for translation in "gpg-interface.c".

To ensure that, let's mark for translation an error message in a
die() function.

With this, all the error and warning messages emitted by fast-export
and fast-import can be properly translated.

Signed-off-by: Christian Couder <[email protected]>

Author: chriscool

gpg-interface.c

@@ -876,7 +876,7 @@ static char *get_default_ssh_signing_key(void)
 	n = split_cmdline(key_command, &argv);
 
 	if (n < 0)
-		die("malformed build-time gpg.ssh.defaultKeyCommand: %s",
+		die(_("malformed build-time gpg.ssh.defaultKeyCommand: %s"),
 		    split_cmdline_strerror(n));
 
 	strvec_pushv(&ssh_default_key.args, argv);