Break out $cleanmode_re (nfc)

diff --git a/dgit b/dgit
index 9c4d3d6e66297c148678945c57dd4757fc34f733..d7d27f834c4c9d349ceb2e78553c2852a239464b 100755 (executable)
--- a/dgit
+++ b/dgit
@@ -67,6 +67,7 @@ our $initiator_tempdir;
 our %format_ok = map { $_=>1 } ("1.0","3.0 (native)","3.0 (quilt)");
 
 our $suite_re = '[-+.0-9a-z]+';
+our $cleanmode_re = 'dpkg-source(?:-d)?|git|git-ff|check|none';
 
 our (@git) = qw(git);
 our (@dget) = qw(dget);
@@ -3164,7 +3165,7 @@ sub parseopts () {
            } elsif (m/^--build-products-dir=(.*)/s) {
                push @ropts, $_;
                $buildproductsdir = $1;
-           } elsif (m/^--clean=(dpkg-source(?:-d)?|git|git-ff|check|none)$/s) {
+           } elsif (m/^--clean=($cleanmode_re)$/os) {
                push @ropts, $_;
                $cleanmode = $1;
            } elsif (m/^--clean=(.*)$/s) {