improve readability of stdlib: fix indentation and remove trailing spaces

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>

Change-Id: I7dd90a0816b5376ffc1de4499d56935e0bd574a1

libc/stdlib/assert.c

@@ -49,6 +49,6 @@ __assert2(const char *file, int line, const char *func, const char *failedexpr)
 	(void)fprintf(stderr,
 	    "assertion \"%s\" failed: file \"%s\", line %d, function \"%s\"\n",
 	    failedexpr, file, line, func);
-  abort();
+	abort();
 	/* NOTREACHED */
 }