[PATCH] gitweb: Check git base URLs before generating URL from it

Check if each of git base URLs in @git_base_url_list is true before
appending "/$project" to it to generate project URL.

This fixes the error that for default configuration for gitweb in
Makefile, with GITWEB_BASE_URL empty (and "++GITWEB_BASE_URL++" being
"" in gitweb.cgi), we had URL of "/$project" in the summary view.

Signed-off-by: Jakub Narebski <redacted>
---
I don't think that anybody would want base URL of "0".

 gitweb/gitweb.perl |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 35a9afb..0d2ea72 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl

@@ -2516,7 +2516,8 @@ sub git_summary {
 	# or make project git URL from git base URL and project name
 	my $url_tag = "URL";
 	my @url_list = git_get_project_url_list($project);
-	@url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
+	@url_list = map { $_ ? "$_/$project" : () }
+		@git_base_url_list unless @url_list;
 	foreach my $git_url (@url_list) {
 		next unless $git_url;
 		print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";

-- 
1.4.3.3