Remove impossible "-?" option.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49149 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/scan-build b/utils/scan-build
index 12a7dbc..116fa6b 100755
--- a/utils/scan-build
+++ b/utils/scan-build
@@ -312,7 +312,7 @@
                   the analyzer.  If this option is not specified, a directory
                   is created in /tmp to store the reports.
                 
-  -?, -h        - Display this message.
+  -h            - Display this message.
   --help
   
   -k            - Add a "keep on going" option to the specified build command.