[PATCH 2/2] git-gui: fix applying line/ranges when the selection ends at the begin of a line

[Bert Wesarg <bert.wesarg@googlemail.com>]

Selecting also the trailing newline of a line for staging/unstaging would
have resulted in also staging/unstaging of the next line.

Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
---
 lib/diff.tcl |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/lib/diff.tcl b/lib/diff.tcl
index 63f8742..a750ea7 100644
--- a/lib/diff.tcl
+++ b/lib/diff.tcl
@@ -632,7 +632,13 @@ proc apply_range_or_line {x y} {
 	}
 
 	set first_l [$ui_diff index "$first linestart"]
-	set last_l [$ui_diff index "$last lineend"]
+	# don't include the next line if $last points to the start of a line
+	# ie. <lno>.0
+	if {[lindex [split $last .] 1] == 0} {
+		set last_l [$ui_diff index "$last -1 line lineend"]
+	} else {
+		set last_l [$ui_diff index "$last lineend"]
+	}
 
 	if {$current_diff_path eq {} || $current_diff_header eq {}} return
 	if {![lock_index apply_hunk]} return
-- 
1.7.8.1.873.gfea665