[PATCH 2/2] tests: introduce --stress-jobs=<N>

["Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

The --stress option currently accepts an argument, but it is confusing
to at least this user that the argument does not define the maximal
number of stress iterations, but instead the number of jobs to run in
parallel per stress iteration.

Let's introduce a separate option for that, whose name makes it more
obvious what it is about, and let --stress=<N> error out with a helpful
suggestion about the two options tha could possibly have been meant.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 t/test-lib.sh | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/t/test-lib.sh b/t/test-lib.sh
index ab7f27ec6a..6e557982a2 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -142,10 +142,16 @@ do
 	--stress)
 		stress=t ;;
 	--stress=*)
+		echo "error: --stress does not accept an argument: '$opt'" >&2
+		echo "did you mean --stress-jobs=${opt#*=} or --stress-limit=${opt#*=}?" >&2
+		exit 1
+		;;
+	--stress-jobs=*)
+		stress=t;
 		stress=${opt#--*=}
 		case "$stress" in
 		*[!0-9]*|0*|"")
-			echo "error: --stress=<N> requires the number of jobs to run" >&2
+			echo "error: --stress-jobs=<N> requires the number of jobs to run" >&2
 			exit 1
 			;;
 		*)	# Good.
-- 
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