problem with recent change to grep-regexp-alist

[Emanuele Giaquinta <emanuele.giaquinta@gmail.com>]

Hi,

In the 1.42 revision of grep.el the subpattern for the filename in the
regexps of the first two grep-regexp-alist's elements has been changed
from "\(.+?\)" to "\([^:\n]+\)". Now the matching fails if the
filename contains a colon, while the previous value worked, thanks to the
non greedy "+?" quantifier. Note that the regexp of the third
grep-regexp-alist's element is still correct, and is the one that
matches if grep-highlight-matches's value is "t" (which is the
default).

Emanuele Giaquinta