bug#4374: find-file-at-point doesn't recognize absolute file paths with trailing line numbers. (Patch included.)

[hans bennekop]

> I wonder what the value of `path-separator' do you have?  Is it a colon?
Oh, I didn't see that part. It's a semicolon (Windows).
Since I don't know of any relevant OS where colons are permitted in a 
path, I'd vote for explicitly handling them to allow for compatibility 
with Unix style paths.