tools: Fix typos in source code comments

Change-Id: I9666104a320f66b22c5144375ce7440bb59737e6
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

src/tools/moc/moc.cpp

@@ -1708,7 +1708,7 @@ bool Moc::until(Token target) {
     }
 
     //when searching commas within the default argument, we should take care of template depth (anglecount)
-    // unfortunatelly, we do not have enough semantic information to know if '<' is the operator< or
+    // unfortunately, we do not have enough semantic information to know if '<' is the operator< or
     // the beginning of a template type. so we just use heuristics.
     int possible = -1;
 
@@ -1829,7 +1829,7 @@ void Moc::checkSuperClasses(ClassDef *def)
 void Moc::checkProperties(ClassDef *cdef)
 {
     //
-    // specify get function, for compatibiliy we accept functions
+    // specify get function, for compatibility we accept functions
     // returning pointers, or const char * for QByteArray.
     //
     QDuplicateTracker<QByteArray> definedProperties(cdef->propertyList.count());

src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp

@@ -537,7 +537,7 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
 
             // getter:
             if (property.access != QDBusIntrospection::Property::Write)
-                // it's readble
+                // it's readable
                 hs << " READ " << getter;
 
             // setter

src/tools/rcc/main.cpp

@@ -90,7 +90,7 @@ int createProject(const QString &outFileName)
     out << QLatin1String("<!DOCTYPE RCC><RCC version=\"1.0\">\n"
                          "<qresource>\n");
 
-    // use "." as dir to get relative file pathes
+    // use "." as dir to get relative file paths
     dumpRecursive(QDir(QLatin1String(".")), out);
 
     out << QLatin1String("</qresource>\n"