cmd/dist: fix whitespace and comment typo in arm vfp detection

Follow-up to cl 2682.

Change-Id: I06a589e782af821e4fa46a7c34d9a549de47fa60
Reviewed-on: https://go-review.googlesource.com/3830Reviewed-by: Dave Cheney <dave@cheney.net>

src/cmd/dist/vfp_arm.s

@@ -6,10 +6,10 @@
 
 // try to run "vmov.f64 d0, d0" instruction
 TEXT ·useVFPv1(SB),NOSPLIT,$0
-	WORD $0xeeb00b40	// vomv.f64 d0, d0
+	WORD $0xeeb00b40	// vmov.f64 d0, d0
 	RET
 
 // try to run VFPv3-only "vmov.f64 d0, #112" instruction
 TEXT ·useVFPv3(SB),NOSPLIT,$0
-        WORD $0xeeb70b00	// vmov.f64 d0, #112
+	WORD $0xeeb70b00	// vmov.f64 d0, #112
 	RET