Fix finding path to gcl when drover is run with a relative path....

Fix finding path to gcl when drover is run with a relative path.

BUG=none
TEST=cd ../tempdir && ../depot_tools/drover <some args>


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=62497

[mattm, 2010-10-13 21:13:18]

Got some odd presubmit errors, though I don't see how they could be related. 
Probably have wrong versions of something installed due to ghardy?


Running presubmit hooks...
************* Module presubmit_support
E1101: 44: Module 'json' has no 'loads' member
** Presubmit Messages **
1 unit tests failed.

***************
Test 'tests.gclient_smoketest' failed with code 1

.......F............................
======================================================================
FAIL: testMultiSolutionsJobs (__main__.GClientSmokeBoth)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/local/google/home/x/src/depot_tools/tests/gclient_smoketest.py",
line 895, in testMultiSolutionsJobs
    untangle=True)
  File "/usr/local/google/home/x/src/depot_tools/tests/gclient_smoketest.py",
line 73, in parseGclient
    return self.checkBlock(stdout, items)
  File "/usr/local/google/home/x/src/depot_tools/tests/gclient_smoketest.py",
line 126, in checkBlock
    self.checkString(results[i][0][2], path, (i, results[i][0][2], path))
  File "fake_repos.py", line 601, in checkString
    self.assertEquals(expected, result, msg)
AssertionError: (3,
'/usr/local/google/home/x/src/depot_tools/tests/_trial/smoke/__main__.GClientSmokeBoth.testMultiSolutionsJobs',
'/usr/local/google/home/x/src/depot_tools/tests/_trial/smoke/__main__.GClientSmokeBoth.testMultiSolutionsJobs/src/file/other')

----------------------------------------------------------------------
Ran 36 tests in 149.152s

FAILED (failures=1)
***************

[M-A Ruel, 2010-10-14 02:02:13]

> Probably have wrong versions of something installed due to ghardy?

Time to upgrade! Sorry about that.

lgtm