Improve gendef.pl diagnostic on failure to open sym file

Andrew Dunstan <andrew@dunslane.net>

Commit: 0cf721244a819cbd67b2bc0a8c8a97adcb53944e
Author: Andrew Dunstan <andrew@dunslane.net>
Date: 2017-10-26T14:16:35Z
Releases: 9.3.20
Improve gendef.pl diagnostic on failure to open sym file

There have been numerous buildfarm failures but the diagnostic is
currently silent about the reason for failure to open the file. Let's
see if we can get to the bottom of it.

Backpatch to all live branches.

Files

PathChange+/−
src/tools/msvc/gendef.pl modified +1 −1