C++: Address review comments

Author: jketema

cpp/ql/test/experimental/query-tests/Best Practices/GuardedFree/GuardedFree.expected

@@ -4,7 +4,7 @@
 | test.cpp:31:7:31:24 | ... \|\| ... | unnecessary NULL check before call to $@ | test.cpp:35:3:35:6 | call to free | free |
 | test.cpp:31:8:31:8 | x | unnecessary NULL check before call to $@ | test.cpp:35:3:35:6 | call to free | free |
 | test.cpp:94:12:94:12 | x | unnecessary NULL check before call to $@ | test.cpp:94:3:94:13 | call to free | free |
-| test.cpp:98:6:98:7 | ! ... | unnecessary NULL check before call to $@ | test.cpp:101:3:101:6 | call to free | free |
-| test.cpp:98:7:98:7 | x | unnecessary NULL check before call to $@ | test.cpp:101:3:101:6 | call to free | free |
-| test.cpp:106:6:106:17 | ... != ... | unnecessary NULL check before call to $@ | test.cpp:107:5:107:8 | call to free | free |
-| test.cpp:113:6:113:17 | ... != ... | unnecessary NULL check before call to $@ | test.cpp:114:17:114:20 | call to free | free |
+| test.cpp:98:7:98:8 | ! ... | unnecessary NULL check before call to $@ | test.cpp:101:3:101:6 | call to free | free |
+| test.cpp:98:8:98:8 | x | unnecessary NULL check before call to $@ | test.cpp:101:3:101:6 | call to free | free |
+| test.cpp:106:7:106:18 | ... != ... | unnecessary NULL check before call to $@ | test.cpp:107:5:107:8 | call to free | free |
+| test.cpp:113:7:113:18 | ... != ... | unnecessary NULL check before call to $@ | test.cpp:114:17:114:20 | call to free | free |

cpp/ql/test/experimental/query-tests/Best Practices/GuardedFree/test.cpp

@@ -95,21 +95,21 @@ void test11(char *x) {
 }
 
 bool test12(char *x) {
-  if(!x) // GOOD [FALSE POSITIVE]: return value depends on x
+  if (!x) // GOOD [FALSE POSITIVE]: return value depends on x
     return false;
 
   free(x);
   return true;
 }
 
 void test13(char *x) {
-  if(x != nullptr) // BAD
+  if (x != nullptr) // BAD
     free(x);
 }
 
 void inspect(char *x);
 
 void test14(char *x) {
-  if(x != nullptr) // GOOD [FALSE POSITIVE]: x might be accessed
+  if (x != nullptr) // GOOD [FALSE POSITIVE]: x might be accessed
     inspect(x), free(x);
 }