Introduce usagef() that takes a printf-style format

diff --git a/git-cvsexportcommit.perl b/git-cvsexportcommit.perl
index a36df3392652b8a854ca48bdf71977dcf12b244b..59b672213bfc36f95db089f0e13bafc1c2f2ed71 100755 (executable)
--- a/git-cvsexportcommit.perl
+++ b/git-cvsexportcommit.perl
@@ -259,7 +259,8 @@
            if $file =~ /^no file /
                && $status eq 'Up-to-date';
 
-       $cvsstat{$fullname{$file}} = $status;
+       $cvsstat{$fullname{$file}} = $status
+           if defined $fullname{$file};
       }
     }
 }
@@ -299,7 +300,7 @@
        while (<FILTER_IN>)
        {
            my $line = $_;
-           $line =~ s/\$([A-Z][a-z]+):[^\$]+\$/\$\1\$/g;
+           $line =~ s/\$([A-Z][a-z]+):[^\$]+\$/\$$1\$/g;
            print FILTER_OUT $line;
        }
        close FILTER_IN;