Typos found by running "codespell" (#1715)

addons/misra.py

@@ -1739,7 +1739,7 @@ class MisraChecker:
         # Rule existed in the dictionary. Check for
         # filename entries.
 
-        # Get the dictionary for the rule numer
+        # Get the dictionary for the rule number
         fileDict = self.suppressedRules[ruleNum]
 
         # If the filename is not in the dict already add it

addons/y2038/README

@@ -36,7 +36,7 @@ any user code around which uses 32-bit epoch representations.
 
 There is Y2038-proofing work in progress on the Linux and GNU glibc front.
 
-2. What is the Y2038 ccpcheck addon?
+2. What is the Y2038 cppcheck addon?
 
 The Y2038 cppcheck addon is a tool to help detect code which might need fixing
 because it is Y2038-unsafe. This may be because it uses types or functions from

test/testsimplifytemplate.cpp

@@ -981,7 +981,7 @@ private:
                       "int f<int> ( int t ) { return t ; }", tok(code2));
     }
 
-    void template42() { // #4878 cpcheck aborts in ext-blocks.cpp (clang testcode)
+    void template42() { // #4878 cppcheck aborts in ext-blocks.cpp (clang testcode)
         const char code[] = "template<typename ...Args>\n"
                             "int f0(Args ...args) {\n"
                             "  return ^ {\n"
@@ -993,7 +993,7 @@ private:
         tok(code);
     }
 
-    void template43() { // #5097 - Assert due to '>>' in 'B<A<C>>' not being treated as end of template instantation
+    void template43() { // #5097 - Assert due to '>>' in 'B<A<C>>' not being treated as end of template instantiation
         const char code[] = "template <typename T> struct E { typedef int Int; };\n"
                             "template <typename T> struct C { };\n"
                             "template <typename T> struct D { static int f() { return C<T>::f(); } };\n"