[PATCH] perf tool: simplify a git command in PERF-VERSION-GEN

[Ramkumar Ramachandra]

Replace a complex git log invocation with a simpler git rev-parse
invocation.

Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Ramkumar Ramachandra <artagnon@xxxxxxxxx>
---
 tools/perf/util/PERF-VERSION-GEN | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index 15a77b7..b23d11b 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -18,7 +18,7 @@ TAG=
 if test -d ../../.git -o -f ../../.git
 then
 	TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )
-	CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
+	CID=$(git rev-parse --short HEAD 2>/dev/null) && CID="-g$CID"
 fi
 if test -z "$TAG"
 then
-- 
1.8.4.477.g5d89aa9

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