test-lib: simplify '--option=value' parsing

diff --git a/t/t1508-at-combinations.sh b/t/t1508-at-combinations.sh
index 078e1195dfa1625796fdbbf1b054ebf8a1ba2621..4a9964e9dc4e0437b703a35a727e7e1971cf06fd 100755 (executable)
--- a/t/t1508-at-combinations.sh
+++ b/t/t1508-at-combinations.sh
@@ -35,7 +35,10 @@ test_expect_success 'setup' '
        git checkout -b upstream-branch &&
        test_commit upstream-one &&
        test_commit upstream-two &&
-       git checkout -b @/at-test &&
+       if test_have_prereq !MINGW
+       then
+               git checkout -b @/at-test
+       fi &&
        git checkout -b @@/at-test &&
        git checkout -b @at-test &&
        git checkout -b old-branch &&
@@ -64,6 +67,7 @@ check "@{-1}@{u}@{1}" commit master-one
 check "@" commit new-two
 check "@@{u}" ref refs/heads/upstream-branch
 check "@@/at-test" ref refs/heads/@@/at-test
+test_have_prereq MINGW ||
 check "@/at-test" ref refs/heads/@/at-test
 check "@at-test" ref refs/heads/@at-test
 nonsense "@{u}@{-1}"