Fix comments for BC_ITERN.

src/buildvm_ppc.dasc

@@ -3091,7 +3091,7 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
     break;
 
   case BC_ITERN:
-    |  // RA = base*8, (RB = (nresults+1)*8 (2+1)*8, RC = (nargs+1)*8 (2+1)*8)
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 (2+1)*8)
 #if LJ_HASJIT
     |  // NYI: add hotloop, record BC_ITERN.
 #endif

src/buildvm_x86.dasc

@@ -4743,7 +4743,7 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop, int cmov, int sse)
     break;
 
   case BC_ITERN:
-    |  ins_A	// RA = base, (RB = nresults+1 (2+1), RC = nargs+1 (2+1))
+    |  ins_A	// RA = base, (RB = nresults+1, RC = nargs+1 (2+1))
 #if LJ_HASJIT
     |  // NYI: add hotloop, record BC_ITERN.
 #endif