[1/2] comctl32/listview: Adjust dispinfo text buffer length

[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=10151

Your paranoid android.


=== WNT4WSSP6 (32 bit listview) ===
listview.c:397: Test failed: buffer size 264
listview.c:397: Test failed: buffer size 264
listview.c:397: Test failed: buffer size 264
listview.c:397: Test failed: buffer size 264
listview.c:397: Test failed: buffer size 264
listview.c:397: Test failed: buffer size 264
listview.c:397: Test failed: buffer size 264
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259
listview.c:353: Test failed: text limit 260, expected 259