git-submodule: remove extraneous space from error message

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Acked-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-submodule.sh

@@ -862,7 +862,7 @@ Maybe you want to use 'update --init'?")"
 				;;
 			!*)
 				command="${update_module#!}"
-				die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule  path '\$prefix\$sm_path'")"
+				die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule path '\$prefix\$sm_path'")"
 				say_msg="$(eval_gettext "Submodule path '\$prefix\$sm_path': '\$command \$sha1'")"
 				must_die_on_failure=yes
 				;;