Move _CS_PATH from <sys/unistd.h> to <unistd.h> -- the kernel isn't involved

in confstr() processing.

include/unistd.h

@@ -141,6 +141,8 @@ int	 getopt(int, char * const [], const char *);
 
 extern char *optarg;			/* getopt(3) external variables */
 extern int optind, opterr, optopt;
+
+#define	_CS_PATH		1	/* default value of PATH */
 #endif
 
 /* ISO/IEC 9945-1: 1996 */

sys/sys/unistd.h

@@ -145,9 +145,6 @@
 #define	_SC_STREAM_MAX		26
 #define	_SC_TZNAME_MAX		27
 
-/* configurable system strings */
-#define	_CS_PATH		 1
-
 #ifdef _P1003_1B_VISIBLE
 
 #define _POSIX_PRIORITY_SCHEDULING