Use unsigned int for nxt_bool_t in va_arg().

This is required for the next patch which will change nxt_bool_t from a
nxt_uint_t to a uint8_t, which produces the following compiler warning

cc -c -pipe -fPIC -fvisibility=hidden -O -W -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wmissing-prototypes -Werror -g   -I src -I build   \
                      \
                     \
-o build/src/nxt_sprintf.o \
-MMD -MF build/src/nxt_sprintf.dep -MT build/src/nxt_sprintf.o \
src/nxt_sprintf.c
In file included from src/nxt_unix.h:160,
                 from src/nxt_main.h:31,
                 from src/nxt_sprintf.c:7:
src/nxt_sprintf.c: In function ‘nxt_vsprintf’:
src/nxt_sprintf.c:368:44: error: ‘nxt_bool_t’ {aka ‘unsigned char’} is promoted to ‘int’ when passed through ‘...’ [-Werror]
  368 |             ui64 = (uint64_t) va_arg(args, nxt_bool_t);
      |                                            ^
src/nxt_sprintf.c:368:44: note: (so you should pass ‘int’ not ‘nxt_bool_t’ {aka ‘unsigned char’} to ‘va_arg’)
src/nxt_sprintf.c:368:44: note: if this code is reached, the program will abort
cc1: all warnings being treated as errors

Lets use unsigned int as it matches the signedness of nxt_bool_t.

Reviewed-by: Alejandro Colomar <alx@nginx.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/nxt_sprintf.c b/src/nxt_sprintf.c
index 9c8e27ed..cad402fa 100644
--- a/src/nxt_sprintf.c
+++ b/src/nxt_sprintf.c
@@ -365,7 +365,7 @@ nxt_vsprintf(u_char *buf, u_char *end, const char *fmt, va_list args)
             goto number;
 
         case 'b':
-            ui64 = (uint64_t) va_arg(args, nxt_bool_t);
+            ui64 = (uint64_t) va_arg(args, unsigned int);
             sign = 0;
             goto number;