[PATCH v2 3/4] builtins/printf.def: fix type mismatch in tescape call

When HANDLE_MULTIBYTE is disabled, the 'c' variable is an int, but
tescape expects a char * as its second argument. This causes a type
mismatch error.

This fixes the following failure seen with br-arm-basic toolchain:

./printf.def:1230:26: error: passing argument 2 of 'tescape' from incompatible pointer type [-Werror=incompatible-pointer-types]
 1230 |       s += tescape (s, &c, (int *)NULL, &temp);
      |                        ^~
      |                        |
      |                        int *
./printf.def:1068:30: note: expected 'char *' but argument is of type 'int *'
 1068 | tescape (char *estart, char *cp, int *lenp, int *sawc)
      |                        ~~~~~~^~

Signed-off-by: Shubham Chakraborty <[email protected]>
---
 builtins/printf.def | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/builtins/printf.def b/builtins/printf.def
index f7abf53d..7332736c 100644
--- a/builtins/printf.def
+++ b/builtins/printf.def
@@ -1227,7 +1227,11 @@ bexpand (char *string, size_t len, int *sawc, size_t *lenp)
       memset (mbch, '\0', sizeof (mbch));
       s += tescape (s, mbch, &mblen, &temp);
 #else
-      s += tescape (s, &c, (int *)NULL, &temp);
+      {
+	char cc;
+	s += tescape (s, &cc, (int *)NULL, &temp);
+	c = cc;
+      }
 #endif
       if (temp)
 	{
-- 
2.55.0