K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2022-02-18T01:52:44.109897Z
K 7
svn:log
V 568
elfctl: fix -e invalid operation error handling

Validate the operation prior to parsing the feature string, so that e.g.
-e 0x1 reports invalid operation '0' rather than invalid feature 'x11'.
Also make it an error rather than a warning, so that it is not repeated
if multiple files are specified.

(Previously an invalid operation resulted in a segfault.)

MFC after:	3 days
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit b8185579f457569640f714b6180522619c2f18ea)

Git Hash:   bbb92ab05fa2d039905ef988ca31b4356b01d964
Git Author: emaste@FreeBSD.org
END