[PATCH v5 07/31] git-remote-mediawiki: Rewrite unclear line of instructions

["Célestin Matte" <celestin.matte@ensimag.fr>]

Subroutines' parameters should be assigned to variable before doing anything
else
Besides, existing instruction affected a variable inside a "if", which break
Git's coding style

Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr>
Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
---
 contrib/mw-to-git/git-remote-mediawiki.perl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/contrib/mw-to-git/git-remote-mediawiki.perl b/contrib/mw-to-git/git-remote-mediawiki.perl
index 431e063..2db6467 100755
--- a/contrib/mw-to-git/git-remote-mediawiki.perl
+++ b/contrib/mw-to-git/git-remote-mediawiki.perl
@@ -1333,7 +1333,8 @@ sub get_mw_namespace_id {
 }
 
 sub get_mw_namespace_id_for_page {
-	if (my ($namespace) = $_[0] =~ /^([^:]*):/) {
+	my $namespace = shift;
+	if ($namespace =~ /^([^:]*):/) {
 		return get_mw_namespace_id($namespace);
 	} else {
 		return;
-- 
1.8.3.rc3.18.g21a7b2c