devtool: upgrade: clarify help text for --srcrev option

The -S / --srcrev option must be specified if fetching from a git
repository, so spell that out in the help text.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/scripts/lib/devtool/upgrade.py b/scripts/lib/devtool/upgrade.py
index 7e6aa4278a2579dda3a48c2e18f5dfa684133046..07a90188f368f6991fc04f7c6cb72525696170ab 100644 (file)
--- a/scripts/lib/devtool/upgrade.py
+++ b/scripts/lib/devtool/upgrade.py
@@ -385,7 +385,7 @@ def register_commands(subparsers, context):
     parser_upgrade.add_argument('recipename', help='Name of recipe to upgrade (just name - no version, path or extension)')
     parser_upgrade.add_argument('srctree',  nargs='?', help='Path to where to extract the source tree. If not specified, a subdirectory of %s will be used.' % defsrctree)
     parser_upgrade.add_argument('--version', '-V', help='Version to upgrade to (PV)')
-    parser_upgrade.add_argument('--srcrev', '-S', help='Source revision to upgrade to (if fetching from an SCM such as git)')
+    parser_upgrade.add_argument('--srcrev', '-S', help='Source revision to upgrade to (required if fetching from an SCM such as git)')
     parser_upgrade.add_argument('--srcbranch', '-B', help='Branch in source repository containing the revision to use (if fetching from an SCM such as git)')
     parser_upgrade.add_argument('--branch', '-b', default="devtool", help='Name for new development branch to checkout (default "%(default)s")')
     parser_upgrade.add_argument('--no-patch', action="store_true", help='Do not apply patches from the recipe to the new source code')