print-commit-ids: use -n1 for printing first line

Signed-off-by: Andrew McDermott <andrew.mcdermott@linaro.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/print-commit-ids b/print-commit-ids
index c53cfed..53e3005 100755
--- a/print-commit-ids
+++ b/print-commit-ids
@@ -1,6 +1,5 @@
 #!/bin/sh
 
 for i in "$@"; do
-    tar atf $i | head -1 | sed 's!/.*!!'
+    tar atf $i | head -n 1 | sed 's!/.*!!'
 done
-