[PATCH 1/2] strbuf: Use _rtrim and _ltrim in strbuf_trim

[Brian Gesiak <modocache@gmail.com>]

strbuf_trim strips whitespace from the end, then the beginning of a
strbuf. Those operations are duplicated in strbuf_rtrim and
strbuf_ltrim.

Replace strbuf_trim implementation with calls to strbuf_rtrim,
then strbuf_ltrim.

Signed-off-by: Brian Gesiak <modocache@gmail.com>
---

This is tangential to my GSoC project; I noticed the duplication
and thought it could be remedied.

 strbuf.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/strbuf.c b/strbuf.c
index 83caf4a..382cf68 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -96,15 +96,8 @@ void strbuf_grow(struct strbuf *sb, size_t extra)
 
 void strbuf_trim(struct strbuf *sb)
 {
-	char *b = sb->buf;
-	while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1]))
-		sb->len--;
-	while (sb->len > 0 && isspace(*b)) {
-		b++;
-		sb->len--;
-	}
-	memmove(sb->buf, b, sb->len);
-	sb->buf[sb->len] = '\0';
+	strbuf_rtrim(sb);
+	strbuf_ltrim(sb);
 }
 void strbuf_rtrim(struct strbuf *sb)
 {
-- 
1.9.2.507.g779792a