Removed -? as possible argument

Not only this is not Unix like to use -? for help but the code was
not working since -? was understood as - followed by any characters.

1 files changed, 1 insertions, 1 deletions

diff --git a/build.sh b/build.sh
index 2066df2f4..6bfa468c8 100755
--- a/build.sh
+++ b/build.sh
@@ -267,7 +267,7 @@ for i in "$@"
     do
         lowerI="$(echo $i | awk '{print tolower($0)}')"
         case $lowerI in
-        -?|-h|--help)
+        -h|--help)
             usage
             exit 1
             ;;