Fixed minor issue in update script argument handling
Test: ./update-from-external.sh with 0, 1 and 2 parameters
Change-Id: I25d44fc94aa6f16c7c1cd1f8f71e90f0b0a29de9
diff --git a/update-from-external.sh b/update-from-external.sh
index 397dac8..18ada95 100755
--- a/update-from-external.sh
+++ b/update-from-external.sh
@@ -7,7 +7,7 @@
#
# Does not create a GIT commit.
-if [ $# -eq 0 ]; then
+if [ $# -ne 1 ]; then
echo "usage: $0 <version>"
echo " where <version> is the version number, e.g. 7.7.3"
exit 1