git diff too slow for a file

diff --git a/git-cvsimport.perl b/git-cvsimport.perl
index e838c2e0cd73f1b15a5033f2180d519f42dbd93b..4853bf7a0d2d3cb99dee3f3fc371a48209c9efe2 100755 (executable)
--- a/git-cvsimport.perl
+++ b/git-cvsimport.perl
@@ -609,9 +609,9 @@ sub munge_user_filename {
 my %index; # holds filenames of one index per branch
 
 unless (-d $git_dir) {
-       system("git init");
+       system(qw(git init));
        die "Cannot init the GIT db at $git_tree: $?\n" if $?;
-       system("git read-tree");
+       system(qw(git read-tree));
        die "Cannot init an empty tree: $?\n" if $?;
 
        $last_branch = $opt_o;
@@ -993,7 +993,7 @@ sub commit {
                }
                commit();
                if (($commitcount & 1023) == 0) {
-                       system("git repack -a -d");
+                       system(qw(git repack -a -d));
                }
                $state = 1;
        } elsif ($state == 11 and /^-+$/) {
@@ -1017,7 +1017,7 @@ sub commit {
 if ($line =~ /^(\d+) objects, (\d+) kilobytes$/) {
   my ($n_objects, $kb) = ($1, $2);
   1024 < $kb
-    and system("git repack -a -d");
+    and system(qw(git repack -a -d));
 }
 
 foreach my $git_index (values %index) {
@@ -1059,7 +1059,7 @@ sub commit {
                if ($opt_r && $opt_o ne 'HEAD');
        system('git', 'update-ref', 'HEAD', "$orig_branch");
        unless ($opt_i) {
-               system('git checkout -f');
+               system(qw(git checkout -f));
                die "checkout failed: $?\n" if $?;
        }
 }