cmd: Don't read past end of thisVar in WCMD_expand_envvar (valgrind)

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?
Full results can be found at
http://testbot.winehq.org/JobDetails.pl?Key=11166

Your paranoid android.


=== WNT4WSSP6 (32 bit) ===
batch.c:223: Test failed: unexpected char 0x54 position 0 in line 86 (got 'This Line Is Never Reached.  If this runs, it is a bug.', wanted '65536')
batch.c:223: Test failed: unexpected char 0x31 position 0 in line 87 (got '1', wanted 'errorlevel just right, good')
batch.c:223: Test failed: unexpected char 0x65 position 0 in line 88 (got 'errorlevel too low, bad', wanted 'abc0def')
batch.c:223: Test failed: unexpected char 0x54 position 0 in line 89 (got 'This Line Is Never Reached.  If this runs, it is a bug.', wanted 'errorlevel zero, good')
batch.c:223: Test failed: unexpected char 0x61 position 0 in line 90 (got 'abc1def', wanted '7 should be 7')
batch.c:223: Test failed: unexpected char 0x65 position 0 in line 91 (got 'errorlevel nonzero, bad', wanted '7 should still be 7')
batch.c:223: Test failed: unexpected char 0x37 position 0 in line 92 (got '7 should be 7', wanted '3 should be 3 now')
batch.c:223: Test failed: unexpected char 0x54 position 0 in line 93 (got 'This Line Is Never Reached.  If this runs, it is a bug.', wanted '-----------Testing GOTO-----------')
batch.c:223: Test failed: unexpected char 0x37 position 0 in line 94 (got '7 should still be 7', wanted 'goto with no leading space worked')
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 95 (got '0 should be 3 now', wanted 'goto with a leading space worked')
batch.c:223: Test failed: unexpected char 0x2d position 0 in line 96 (got '-----------Testing GOTO-----------', wanted 'goto with a leading tab worked')
batch.c:223: Test failed: unexpected char 0x67 position 0 in line 97 (got 'goto with no leading space worked', wanted 'goto with a following space worked')
batch.c:223: Test failed: unexpected char 0x67 position 0 in line 98 (got 'goto with a leading space worked', wanted '-----------Done, jumping to EOF-----------')
batch.c:235: Test failed: too long output, got additional goto with a leading tab worked

=== W2KPROSP4 (32 bit) ===
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 92 (got '0 should be 3 now', wanted '3 should be 3 now')

=== WXPPROSP3 (32 bit) ===
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 92 (got '0 should be 3 now', wanted '3 should be 3 now')

=== W2K3R2SESP2 (32 bit) ===
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 92 (got '0 should be 3 now', wanted '3 should be 3 now')

=== WVISTAADM (32 bit) ===
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 92 (got '0 should be 3 now', wanted '3 should be 3 now')

=== W2K8SE (32 bit) ===
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 92 (got '0 should be 3 now', wanted '3 should be 3 now')

=== W7PRO (32 bit) ===
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 92 (got '0 should be 3 now', wanted '3 should be 3 now')

=== W7PROX64 (32 bit) ===
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 92 (got '0 should be 3 now', wanted '3 should be 3 now')

=== W7PROX64 (64 bit) ===
batch.c:223: Test failed: unexpected char 0x30 position 0 in line 92 (got '0 should be 3 now', wanted '3 should be 3 now')