fix cond with else that is empty bug (#470)

test/decompiler/test_FormBeforeExpressions.cpp

@@ -123,7 +123,7 @@ TEST_F(FormRegressionTest, Min) {
   std::string func =
       "    sll r0, r0, 0\n"
       "    or v0, a0, r0\n"
-      "    or v1, a1, r0 \n"
+      "    or v1, a1, r0\n"
       "    slt a0, v0, v1\n"
       "    movz v0, v1, a0\n"
       "    jr ra\n"
@@ -179,7 +179,7 @@ TEST_F(FormRegressionTest, FormatString) {
       "    jalr ra, t9\n"
       "    sll v0, ra, 0\n"
 
-      "    or v0, gp, r0 \n"
+      "    or v0, gp, r0\n"
       "    ld ra, 0(sp)\n"
       "    ld fp, 8(sp)\n"
       "    lq gp, 16(sp)\n"
@@ -880,4 +880,4 @@ TEST_F(FormRegressionTest, TypeOf) {
       "  (ret-value v0-0)\n"
       "  )";
   test_no_expr(func, type, expected, false);
-}
+}