value: Suppress uninitialized tmp.s warning in value_resize().

This warning is wrong, but it should not cause a performance problem to
avoid it.  Encountered with GCC 10.x.

diff --git a/src/data/value.c b/src/data/value.c
index bbe96b19805a7060945e26bc6eb1ec4d60810583..55a1e55e859952118fa45965d0d376aa85e625d5 100644 (file)
--- a/src/data/value.c
+++ b/src/data/value.c
@@ -161,7 +161,7 @@ void
 value_resize (union value *value, int old_width, int new_width)
 {
   assert (value_is_resizable (value, old_width, new_width));
-  if (new_width != old_width)
+  if (new_width != old_width && new_width > 0)
     {
       union value tmp;
       value_init (&tmp, new_width);