K 10
svn:author
V 3
des
K 8
svn:date
V 27
2016-08-08T10:46:18.102473Z
K 7
svn:log
V 239
Try to check whether each key file exists before adding it, and bail out
if we didn't find any of them.  This reduces log spam about key files for
deprecated algorithms, which we look for but don't generate.

PR:		208254
MFC after:	3 days

END