* src/passwd.c: Use a bool when possible instead of int integers.

	* src/passwd.c: Use a bool when possible instead of int integers.
	* src/passwd.c: Avoid assignments in comparisons.
	* src/passwd.c: Add brackets and parenthesis.
	* src/passwd.c: Avoid implicit conversion of pointers / integers /
	chars to booleans.
	* src/passwd.c: Move the "context_t c" declaration at the
	beginning check_selinux_access.
	* src/passwd.c: Ignore return value of setlocale(),
	bindtextdomain(), and textdomain().