[PATCH 1/3] fixup: use xstrfmt instead of fixed-size buf + sprintf + xstrdup

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The char buf[40] is safe (at least while the strings are not
translated), but I'd rather avoid magic numbers like this 40 in the
code, and use a construct that does not have this size limitation.
Especially if it makes the code shorter.

Signed-off-by: Matthieu Moy <Matthieu.Moy@xxxxxxx>
---
 ref-filter.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/ref-filter.c b/ref-filter.c
index 6044eb0..7932c21 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1116,7 +1116,6 @@ static void populate_value(struct ref_array_item *ref)
 				 strcmp(formatp, "trackshort") &&
 				 (starts_with(name, "upstream") ||
 				  starts_with(name, "push"))) {
-				char buf[40];
 				unsigned int nobracket = 0;
 
 				if (!strcmp(valp, ",nobracket"))
@@ -1135,24 +1134,21 @@ static void populate_value(struct ref_array_item *ref)
 					v->s = "";
 				else if (!num_ours) {
 					if (nobracket)
-						sprintf(buf, "behind %d", num_theirs);
+						v->s = xstrfmt("behind %d", num_theirs);
 					else
-						sprintf(buf, "[behind %d]", num_theirs);
-					v->s = xstrdup(buf);
+						v->s = xstrfmt("[behind %d]", num_theirs);
 				} else if (!num_theirs) {
 					if (nobracket)
-						sprintf(buf, "ahead %d", num_ours);
+						v->s = xstrfmt("ahead %d", num_ours);
 					else
-						sprintf(buf, "[ahead %d]", num_ours);
-					v->s = xstrdup(buf);
+						v->s = xstrfmt("[ahead %d]", num_ours);
 				} else {
 					if (nobracket)
-						sprintf(buf, "ahead %d, behind %d",
-							num_ours, num_theirs);
+						v->s = xstrfmt("ahead %d, behind %d",
+							       num_ours, num_theirs);
 					else
-						sprintf(buf, "[ahead %d, behind %d]",
-						num_ours, num_theirs);
-					v->s = xstrdup(buf);
+						v->s = xstrfmt("[ahead %d, behind %d]",
+							       num_ours, num_theirs);
 				}
 				continue;
 			} else if (!strcmp(formatp, "trackshort") &&
-- 
2.6.0.rc2.24.gb06d8e9.dirty

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