version.con commit attr: make sure we have an xdg path before using it (f0c1c15)
   1#include "git-compat-util.h"
   2#include "version.h"
   3
   4const char git_version_string[] = GIT_VERSION;
   5
   6const char *git_user_agent(void)
   7{
   8        static const char *agent = NULL;
   9
  10        if (!agent) {
  11                agent = getenv("GIT_USER_AGENT");
  12                if (!agent)
  13                        agent = GIT_USER_AGENT;
  14        }
  15
  16        return agent;
  17}