audit: fix coding style issues

Fix various coding style issues across the audit subsystem flagged
by checkpatch.pl script to adhere to kernel coding standards.

Specific changes include:
- kernel/auditfilter.c: Move the open brace '{' to the previous line
  for the audit_ops array declaration.
- lib/audit.c: Add a required space before the open parenthesis '('.
- include/uapi/linux/audit.h: Enclose the complex macro value for
  AUDIT_UID_UNSET in parentheses.

Signed-off-by: Ricardo Robaina <rrobaina@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

include/uapi/linux/audit.h

@@ -508,7 +508,7 @@ struct audit_tty_status {
 	__u32		log_passwd;	/* 1 = enabled, 0 = disabled */
 };
 
-#define AUDIT_UID_UNSET (unsigned int)-1
+#define AUDIT_UID_UNSET ((unsigned int)-1)
 #define AUDIT_SID_UNSET ((unsigned int)-1)
 
 /* audit_rule_data supports filter rules with both integer and string

kernel/auditfilter.c

@@ -303,8 +303,7 @@ exit_err:
 	return ERR_PTR(err);
 }
 
-static u32 audit_ops[] =
-{
+static u32 audit_ops[] = {
 	[Audit_equal] = AUDIT_EQUAL,
 	[Audit_not_equal] = AUDIT_NOT_EQUAL,
 	[Audit_bitmask] = AUDIT_BIT_MASK,

lib/audit.c

@@ -42,7 +42,7 @@ int audit_classify_syscall(int abi, unsigned syscall)
 	if (audit_is_compat(abi))
 		return audit_classify_compat_syscall(abi, syscall);
 
-	switch(syscall) {
+	switch (syscall) {
 #ifdef __NR_open
 	case __NR_open:
 		return AUDITSC_OPEN;