Add missing space after switch.

[jhb]

Test Plan

• make tinderbox

head/sys/arm64/arm64/trap.c

#endif
         case EXCP_WATCHPT_EL1:
         case EXCP_SOFTSTP_EL1:
                 break;
         default:
                 td->td_frame = frame;
                 break;
         }
 
-        switch(exception) {
+        switch (exception) {
         case EXCP_FP_SIMD:
         case EXCP_TRAP_FP:
 #ifdef VFP
                 if ((td->td_pcb->pcb_fpflags & PCB_FP_KERN) != 0) {
                         vfp_restore_state();
                 } else
 #endif
                 {
case EXCP_DATA_ABORT:
                 break;
         }
         intr_enable();
 
         CTR4(KTR_TRAP,
             "do_el0_sync: curthread: %p, esr %lx, elr: %lx, frame: %p", td, esr,
             frame->tf_elr, frame);
 
-        switch(exception) {
+        switch (exception) {
         case EXCP_FP_SIMD:
         case EXCP_TRAP_FP:
 #ifdef VFP
                 vfp_restore_state();
 #else
                 panic("VFP exception in userland");
 #endif
                 break;

head/sys/riscv/riscv/trap.c

 #ifdef KDTRACE_HOOKS
         if (dtrace_trap_func != NULL && (*dtrace_trap_func)(frame, exception))
                 return;
 #endif
 
         CTR3(KTR_TRAP, "do_trap_supervisor: curthread: %p, sepc: %lx, frame: %p",
             curthread, frame->tf_sepc, frame);
 
-        switch(exception) {
+        switch (exception) {
         case EXCP_FAULT_LOAD:
         case EXCP_FAULT_STORE:
         case EXCP_FAULT_FETCH:
         case EXCP_STORE_PAGE_FAULT:
         case EXCP_LOAD_PAGE_FAULT:
                 data_abort(frame, 0);
                 break;
         case EXCP_BREAKPOINT:
if (frame->tf_scause & EXCP_INTR) {
                 /* Interrupt */
                 riscv_cpu_intr(frame);
                 return;
         }
 
         CTR3(KTR_TRAP, "do_trap_user: curthread: %p, sepc: %lx, frame: %p",
             curthread, frame->tf_sepc, frame);
 
-        switch(exception) {
+        switch (exception) {
         case EXCP_FAULT_LOAD:
         case EXCP_FAULT_STORE:
         case EXCP_FAULT_FETCH:
         case EXCP_STORE_PAGE_FAULT:
         case EXCP_LOAD_PAGE_FAULT:
         case EXCP_INST_PAGE_FAULT:
                 data_abort(frame, 1);
                 break;