No code changes, fixed some typos.

Changed several occurrences of "it's" where "its" is meant, as well as a few other minor typos.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67656 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/strings/crt.cpp

@@ -70,7 +70,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( CrtTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( CrtTestCase, "CrtTestCase" );
 
 void CrtTestCase::SetGetEnv()

tests/strings/iostream.cpp

@@ -47,7 +47,7 @@ private:
 
 CPPUNIT_TEST_SUITE_REGISTRATION( StringIostreamTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StringIostreamTestCase, "StringIostream" );
 
 void StringIostreamTestCase::Out()

tests/strings/numformatter.cpp

@@ -80,7 +80,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( NumFormatterTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( NumFormatterTestCase, "NumFormatterTestCase" );
 
 // ----------------------------------------------------------------------------

tests/strings/stdstrings.cpp

@@ -79,7 +79,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( StdStringTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StdStringTestCase, "StdStringTestCase" );
 
 StdStringTestCase::StdStringTestCase()

tests/strings/strings.cpp

@@ -104,7 +104,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( StringTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StringTestCase, "StringTestCase" );
 
 StringTestCase::StringTestCase()

tests/strings/tokenizer.cpp

@@ -53,7 +53,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( TokenizerTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TokenizerTestCase, "TokenizerTestCase" );
 
 // ----------------------------------------------------------------------------

tests/strings/unichar.cpp

@@ -54,7 +54,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( UniCharTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( UniCharTestCase, "UniCharTestCase" );
 
 void UniCharTestCase::CharCompare()

tests/strings/unicode.cpp

@@ -174,7 +174,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( UnicodeTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( UnicodeTestCase, "UnicodeTestCase" );
 
 UnicodeTestCase::UnicodeTestCase()

tests/strings/vararg.cpp

@@ -60,7 +60,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( VarArgTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( VarArgTestCase, "VarArgTestCase" );
 
 void VarArgTestCase::StringPrintf()

tests/strings/vsnprintf.cpp

@@ -189,7 +189,7 @@ private:
 // register in the unnamed registry so that these tests are run by default
 CPPUNIT_TEST_SUITE_REGISTRATION( VsnprintfTestCase );
 
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( VsnprintfTestCase, "VsnprintfTestCase" );
 
 void VsnprintfTestCase::setUp()