Provide defaultFont with fontconfig db

So that it won't just return "Helvetica" that may not exist in
target system. Providing it seems to fix QTBUG-21833 as well,
thus we can remove the QEXPECT_FAIL statement in qlistview test.
'_' appears to reach the minimum right bearing in some fonts.

Task-number: QTBUG-21833
Change-Id: I2340af6ee736083ec4f6575e469840ebec4e545e
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gui/text/qfontengine_ft.cpp b/src/gui/text/qfontengine_ft.cpp
index 074724941f..b2bff92b76 100644
--- a/src/gui/text/qfontengine_ft.cpp
+++ b/src/gui/text/qfontengine_ft.cpp
@@ -1218,6 +1218,7 @@ static const ushort char_table[] = {
         88,
         89,
         91,
+        95,
         102,
         114,
         124,