Don't show .SRCINFO in diffs

install.go

@@ -676,7 +676,7 @@ func showPkgBuildDiffs(pkgs []*rpc.Pkg, bases map[string][]*rpc.Pkg, cloned stri
 				}
 			}
 
-			args := []string{"diff", start + "..HEAD@{upstream}", "--src-prefix", dir + "/", "--dst-prefix", dir + "/"}
+			args := []string{"diff", start + "..HEAD@{upstream}", "--src-prefix", dir + "/", "--dst-prefix", dir + "/", "--", ".", ":(exclude).SRCINFO"}
 			if useColor {
 				args = append(args, "--color=always")
 			} else {