Improve help message.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13266 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/perf/vg_perf.in b/perf/vg_perf.in
index 5527b75..5d31f48 100644
--- a/perf/vg_perf.in
+++ b/perf/vg_perf.in
@@ -63,8 +63,9 @@
-h --help show this message
--reps=<n> number of repeats for each program [1]
--tools=<t1,t2,t3> tools to run [Nulgrind and Memcheck]
- --vg Valgrind(s) to measure [Valgrind in the current directory]
- (can be specified multiple times).
+ --vg=<dir> top-level directory containing Valgrind to measure
+ [Valgrind in the current directory, i.e. --vg=.]
+ Can be specified multiple times.
The "in-place" build is used.
--outer-valgrind: run these Valgrind(s) under the given outer valgrind.