Merge pull request #1416 from Mindavi/bugfix/git-init-suppress-hint

nix-prefetch-git: set branch name to suppress hint from git

src/script/nix-prefetch-git

@@ -78,7 +78,7 @@ fi
 
 init_remote(){
     local url=$1;
-    git init;
+    git init --initial-branch=trunk;
     git remote add origin $url;
 }