Nico Huber posted comments on this change.
Patch set 1:
(1 comment)
Patch Set #1, Line 34: \(\([0-9]\+\.\)\+\([0-9]\+\)\)$
Outer parentheses: because that's needed when using the matching expression
Same paragraph mentions ^ is implicit and unclear what happens
if you use it. So better leave it out.
Shorter alternative:
\(\([0-9]\+\.\)\{2,\}x\)$
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