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[libc] Don't call to __assert always

It is better to call to __assert only when there is a failed
assertion, because it is less disruptive with the program

--- a/libc/include/assert.h

+++ b/libc/include/assert.h

@@ -2,10 +2,10 @@

 #ifndef _ASSERT_H

 #define _ASSERT_H

-void __assert(int status, char *exp, char *file, long line);

+void __assert(char *exp, char *file, long line);

 #ifndef NDEBUG

-# define assert(exp) __assert(exp, #exp, __FILE__, __LINE__)

+# define assert(exp) ((exp) ? (void) 0 : __assert(#exp, __FILE__, __LINE__))

 #else

 # define assert(exp) ((void)0)

 #endif

--- a/libc/src/assert.c

+++ b/libc/src/assert.c

@@ -4,10 +4,8 @@

 #include <stdlib.h>

 #include <stdio.h>

-void __assert(int status, char *exp, char *file, long line)

+void __assert(char *exp, char *file, long line)

 {

-	if (status)

-		return;

 	fprintf(stderr, "%s:%ld: assertion failed '%s'\n", file, line, exp);

 	abort();

 }