fixup! test-gvfs-prococol, t5799: tests for gvfs-helper

`curl version` is not a correct command, therefore that prerequisite
always succeeded by mistake...

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

t/t5799-gvfs-helper.sh

@@ -1123,7 +1123,7 @@ test_expect_success 'http-error: 503 Service Unavailable (with retry and no-fall
 #################################################################
 
 test_lazy_prereq CURL_7_75_OR_NEWER '
-	case "$(curl version | sed -n "1s/^curl \([^ ]*\).*/\1/p")" in
+	case "$(curl --version | sed -n "1s/^curl \([^ ]*\).*/\1/p")" in
 	""|[0-6].*|7.[0-9]*.*|7.[1-6][0-9].*|7.7[0-4]*.*) return 1;;
 	*) return 0;;
 	esac