Include <limits.h> instead of <sys/param.h>

Do not include <sys/param.h> unnecessarily as it includes <signal.h>.

* pathtrace.c: Include <limits.h> instead of <sys/param.h>.
* strace.c: Likewise.
* syscall.c: Likewise.
* util.c: Likewise.
* tests/getcwd.c: Likewise.
* tests/group_req.c: Likewise.
* tests/inode_of_sockfd.c: Likewise.
* tests/ip_mreq.c: Likewise.
* tests/printpath-umovestr.c: Likewise.
* tests/qual_fault.c: Likewise.
* tests/test_printpath.c: Likewise.
* tests/umovestr3.c: Likewise.
* tests/net-y-unix.c: Do not include <sys/param.h>.
* tests/net-yy-unix.c: Likewise.

pathtrace.c

@@ -28,7 +28,7 @@
  */
 
 #include "defs.h"
-#include <sys/param.h>
+#include <limits.h>
 #include <poll.h>
 
 #include "syscall.h"

strace.c

@@ -31,7 +31,7 @@
 
 #include "defs.h"
 #include <stdarg.h>
-#include <sys/param.h>
+#include <limits.h>
 #include <fcntl.h>
 #include <signal.h>
 #include <sys/resource.h>

syscall.c

@@ -36,7 +36,7 @@
 #include "native_defs.h"
 #include "nsig.h"
 #include "number_set.h"
-#include <sys/param.h>
+#include <limits.h>
 
 /* for struct iovec */
 #include <sys/uio.h>

tests/getcwd.c

@@ -4,9 +4,9 @@
 
 #ifdef __NR_getcwd
 
+# include <limits.h>
 # include <stdio.h>
 # include <unistd.h>
-# include <sys/param.h>
 
 int
 main(void)

tests/group_req.c

@@ -33,9 +33,9 @@
 
 #if defined MCAST_JOIN_GROUP && defined MCAST_LEAVE_GROUP
 
+# include <limits.h>
 # include <stdio.h>
 # include <unistd.h>
-# include <sys/param.h>
 # include <sys/socket.h>
 # include <arpa/inet.h>
 

tests/inode_of_sockfd.c

@@ -29,11 +29,11 @@
 
 #include "tests.h"
 #include <assert.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/param.h>
 
 unsigned long
 inode_of_sockfd(const int fd)

tests/ip_mreq.c

@@ -32,9 +32,9 @@
 #if defined IP_ADD_MEMBERSHIP && defined IPV6_ADD_MEMBERSHIP \
  && defined IPV6_JOIN_ANYCAST
 
+# include <limits.h>
 # include <stdio.h>
 # include <unistd.h>
-# include <sys/param.h>
 # include <sys/socket.h>
 # include <arpa/inet.h>
 # include <net/if.h>

tests/net-y-unix.c

@@ -34,7 +34,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/param.h>
 #include <sys/socket.h>
 #include <sys/un.h>
 

tests/net-yy-unix.c

@@ -34,7 +34,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/param.h>
 #include <sys/socket.h>
 #include <sys/un.h>
 

tests/printpath-umovestr.c

@@ -29,8 +29,8 @@
 
 #include "tests.h"
 #include "test_ucopy.h"
+#include <limits.h>
 #include <stdio.h>
-#include <sys/param.h>
 
 int
 main(void)

tests/qual_fault.c

@@ -33,11 +33,11 @@
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/param.h>
 #include <sys/stat.h>
 #include <sys/uio.h>
 #include <sys/wait.h>

tests/test_printpath.c

@@ -29,10 +29,10 @@
 
 #include "tests.h"
 
+#include <limits.h>
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/param.h>
 
 #include "test_ucopy.h"
 

tests/umovestr3.c

@@ -26,9 +26,9 @@
  */
 
 #include "tests.h"
+#include <limits.h>
 #include <stdio.h>
 #include <unistd.h>
-#include <sys/param.h>
 
 int
 main(void)

util.c

@@ -33,7 +33,7 @@
  */
 
 #include "defs.h"
-#include <sys/param.h>
+#include <limits.h>
 #include <fcntl.h>
 #include <stdarg.h>
 #ifdef HAVE_SYS_XATTR_H