Fix grammar in alert message RULE-11-3-1

Author: knewbury01

cpp/misra/src/rules/RULE-11-3-1/VariableDeclaredArrayType.ql

@@ -32,4 +32,4 @@ where
   exists(ArrayType a | v.getType() = a | not v instanceof FixedSizeCharArray) and
   // Exclude the compiler generated __func__ as it is the only way to access the function name information
   not v.getName() = "__func__"
-select v, "Variable " + v.getName() + " is array type."
+select v, "Variable " + v.getName() + " has an array type."

cpp/misra/test/rules/RULE-11-3-1/VariableDeclaredArrayType.expected

@@ -1,9 +1,9 @@
-| test.cpp:5:5:5:5 | g | Variable g is array type. |
-| test.cpp:9:24:9:24 | a | Variable a is array type. |
-| test.cpp:10:7:10:8 | a1 | Variable a1 is array type. |
-| test.cpp:14:7:14:8 | a1 | Variable a1 is array type. |
-| test.cpp:19:7:19:7 | x | Variable x is array type. |
-| test.cpp:20:17:20:17 | a | Variable a is array type. |
-| test.cpp:22:8:22:9 | x1 | Variable x1 is array type. |
-| test.cpp:28:6:28:7 | g1 | Variable g1 is array type. |
-| test.cpp:34:21:34:21 | p | Variable p is array type. |
+| test.cpp:5:5:5:5 | g | Variable g has an array type. |
+| test.cpp:9:24:9:24 | a | Variable a has an array type. |
+| test.cpp:10:7:10:8 | a1 | Variable a1 has an array type. |
+| test.cpp:14:7:14:8 | a1 | Variable a1 has an array type. |
+| test.cpp:19:7:19:7 | x | Variable x has an array type. |
+| test.cpp:20:17:20:17 | a | Variable a has an array type. |
+| test.cpp:22:8:22:9 | x1 | Variable x1 has an array type. |
+| test.cpp:28:6:28:7 | g1 | Variable g1 has an array type. |
+| test.cpp:34:21:34:21 | p | Variable p has an array type. |