Subroutines' parameters should be affected 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.ma...@ensimag.fr>
Signed-off-by: Matthieu Moy <matthieu....@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 5e348cb..a5c963b 100755
--- a/contrib/mw-to-git/git-remote-mediawiki.perl
+++ b/contrib/mw-to-git/git-remote-mediawiki.perl
@@ -1334,7 +1334,8 @@ 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;
-- 
1.7.9.5

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