tree f178e24d14bb4e9296b7f93532b24f3d88aa6fc4
parent e9ee4621cbca3fe73c0400e2ba0cbf3e22c201a2
author Erik Ernst <eernst@google.com> 1659396584 +0000
committer Commit Bot <commit-bot@chromium.org> 1659396584 +0000

Adjust spec parser to use exit code 0 when parsing no files

Invocations of the spec parser used to exit with an error code (245)
in the case where no files were specified. This was considered to be a
useless type of invocation, and the spec parser would print out a help
message.

However, it is perfectly possible for a Gerrit CL to give rise to
invocations like that, e.g., when the CL deletes some files and does
nothing else. Also, it causes no known issues to report a success exit
code (0) in the case where no files are specified, and hence this CL
changes the spec parser accordingly.

Change-Id: I9bd75839f1a8052b3daa62fa5440451e46fb59e8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/253280
Reviewed-by: Alexander Thomas <athom@google.com>
Commit-Queue: Erik Ernst <eernst@google.com>