Index: lib/redmine/scm/adapters/git_adapter.rb
===================================================================
--- lib/redmine/scm/adapters/git_adapter.rb	(revision 3208)
+++ lib/redmine/scm/adapters/git_adapter.rb	(working copy)
@@ -111,8 +111,8 @@
         end
 
         def num_revisions
-          cmd = "#{GIT_BIN} --git-dir #{target('')} log --all --pretty=format:'' | wc -l"
-          shellout(cmd) {|io| io.gets.chomp.to_i + 1}
+          cmd = "#{GIT_BIN} --git-dir #{target('')} log --all --pretty=format:''"
+          shellout(cmd) {|io| io.readlines.size}
         end
 
         def revisions(path, identifier_from, identifier_to, options={})