Accept "/" and "-" in branch names specified in REPO.

Author: usualoma

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * Ignore errors when deleting temporary files.
 * Use the `--pull` option to always use the latest image.
+* Accept "/" and "-" in branch names specified in `REPO`.
 
 ## [2.1.1] - 2022-06-20
 

bin/setup-environment

@@ -223,7 +223,7 @@ for my $r ( split /\s+/, $repos ) {
     # get repo
     if ( !-d $directory ) {
         my $branch = '';
-        $branch = $1 if $r =~ s/(?:#(\w+))\z//;
+        $branch = $1 if $r =~ s{(?:#([\w/-]+))\z}{};
 
         my $k = basename($r);
         $directory = catfile( $repo_base_dir, $k );