Make the git plugin look for the binary in the path specified in the settings. Previously, the environment was passed to the process, but that did not affect the location of the binary.

src/plugins/git/gitclient.h

@@ -176,6 +176,7 @@ private:
     GitPlugin     *m_plugin;
     Core::ICore   *m_core;
     GitSettings   m_settings;
+    QString m_binaryPath;
 };