help: check early if we have a command, if not try a documentation topic

diff --git a/git-cvsimport.perl b/git-cvsimport.perl
index 95c5eec51ecc6ab6f142cef51eb4bd3b5842debb..cacbfc0259fd1ae353117d93e345cd8c4dd41188 100755 (executable)
--- a/git-cvsimport.perl
+++ b/git-cvsimport.perl
@@ -227,6 +227,7 @@ sub conn {
                                $proxyport = $1;
                        }
                }
+               $repo ||= '/';
 
                # if username is not explicit in CVSROOT, then use current user, as cvs would
                $user=(getlogin() || $ENV{'LOGNAME'} || $ENV{'USER'} || "anonymous") unless $user;
@@ -772,7 +773,7 @@ sub commit {
        waitpid($pid,0);
        die "Error running git-commit-tree: $?\n" if $?;
 
-       system("git-update-ref $remote/$branch $cid") == 0
+       system('git-update-ref', "$remote/$branch", $cid) == 0
                or die "Cannot write branch $branch for update: $!\n";
 
        if ($tag) {
@@ -780,6 +781,7 @@ sub commit {
                $xtag =~ s/\s+\*\*.*$//; # Remove stuff like ** INVALID ** and ** FUNKY **
                $xtag =~ tr/_/\./ if ( $opt_u );
                $xtag =~ s/[\/]/$opt_s/g;
+               $xtag =~ s/\[//g;
 
                system('git-tag', '-f', $xtag, $cid) == 0
                        or die "Cannot create tag $xtag: $!\n";