There are revision keywords like HEAD which references the latest revision and
PREV which references the last changed revision of the target. E.g: SVN diff
-rHEAD:PREV target.file will show the changes between the last changed revision
for that file and the latest revision, which is effectively
I want to examine the difference between two file revisions, one being
the file in the working copy and the other the same file as the
previous committed revision of that same file.
The diff should be sent to WinMerge for display.
In the WinMerge docs (http://manual.winmerge.org/Version_control.ht
