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

	* src/pwconv.c: Use a bool when possible instead of int integers.
	* src/pwconv.c: Add brackets and parenthesis.
	* src/pwconv.c: Ignore return value of setlocale(),
	bindtextdomain(), and textdomain().
	* src/pwconv.c: Avoid implicit conversion of pointers / integers /
	chars to booleans.