by abryzak:

The test/run shell script replaces the entire path on line 35 rather than 
supplementing it. This causes the test script to fail outputting results if 
some environment variables are set that alter behaviour of standard 
commands and the system ones don't support the options.

What steps will reproduce the problem?
1. Install latest GNU grep using macports
2. Export GREP_OPTIONS='--exclude-dir=\.svn' (I have this in my 
.bash_profile)
3. Run test/run

What is the expected output? What do you see instead?
I expect (according to installation instructions):
--- cd ../test
N known bugs; 0 unexpected bugs

I see:
grep: unrecognized option `--exclude-dir=.svn'
Usage: grep [OPTION]... PATTERN [FILE]...
Try `grep --help' for more information.

What is your $GOOS?  $GOARCH?
darwin/amd64

Which revision are you sync'ed to?  (hg log -l 1)
3975:b51fd2d6c160

Please provide any additional information below.
I could just change my environment variables to avoid this problem but I 
feel the test script should either adjust the PATH rather than replace it, or 
reset the environment to a known state.

Attachments:

1. path-adjusted.patch (316 bytes)