Don't bother checking git version if none found

1 files changed, 1 insertions, 0 deletions

diff --git a/install b/install
index a52715de5..db01d6e6f 100644
--- a/install
+++ b/install
@@ -77,6 +77,7 @@ def git
     s if $? and not s.empty?
   end
 
+  return unless @git
   # Github only supports HTTPS fetches on 1.7.10 or later:
   # https://help.github.com/articles/https-cloning-errors
   `#{@git} --version` =~ /git version (\d\.\d+\.\d+)/