git-gui: use wordprocessor tab style to ensure tabs work as expected

The Tk text widget tab style is tabular where the first tab will align to
the first tabstop and if that position is left of the current location
then just a single character space is used. With the wordprocessor style
a tab moves the next character position to the next rightmost tabstop
as expected for viewing code.

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

diff --git a/git-gui.sh b/git-gui.sh
index 5e8378fc3e4af9854f0063cd5df8ddfdf78ab412..efbc446d674433980cf7910006a8f6736e32039e 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -3312,6 +3312,7 @@ text $ui_diff -background white -foreground black \
        -xscrollcommand {.vpane.lower.diff.body.sbx set} \
        -yscrollcommand {.vpane.lower.diff.body.sby set} \
        -state disabled
+catch {$ui_diff configure -tabstyle wordprocessor}
 ${NS}::scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
        -command [list $ui_diff xview]
 ${NS}::scrollbar .vpane.lower.diff.body.sby -orient vertical \