Fix unused value warnings in snprintf.c

Author: nikic

main/snprintf.c

@@ -568,7 +568,7 @@ typedef struct buf_area buffy;
 	    INS_CHAR( ch, sp, bep, cc ) ;	\
 	    width-- ;				\
 	}					\
-	while ( width > len )
+	while ( (size_t)width > len )
 
 /*
  * Prefix the character ch to the string str
@@ -1188,7 +1188,7 @@ static int format_converter(register buffy * odp, const char *fmt, va_list ap) /
 					s_len--;
 					min_width--;
 				}
-				PAD((size_t)min_width, s_len, pad_char);
+				PAD(min_width, s_len, pad_char);
 			}
 			/*
 			 * Print the string s.
@@ -1199,7 +1199,7 @@ static int format_converter(register buffy * odp, const char *fmt, va_list ap) /
 			}
 
 			if (adjust_width && adjust == LEFT && (size_t)min_width > s_len)
-				PAD((size_t)min_width, s_len, pad_char);
+				PAD(min_width, s_len, pad_char);
 			if (free_zcopy) {
 				zval_ptr_dtor_str(&zcopy);
 			}