unicode_width.h: rename to use dash in file name

This is more consistent with the project style. The majority of Git's
source files use dashes in preference to underscores in their file names.

Also adjust contrib/update-unicode as well.

Signed-off-by: Stefan Beller <sbeller@google.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/utf8.c b/utf8.c
index 2c27ce0..4419055 100644
--- a/utf8.c
+++ b/utf8.c
@@ -81,7 +81,7 @@ static int git_wcwidth(ucs_char_t ch)
 	/*
 	 * Sorted list of non-overlapping intervals of non-spacing characters,
 	 */
-#include "unicode_width.h"
+#include "unicode-width.h"
 
 	/* test for 8-bit control characters */
 	if (ch == 0)