fix: Update main function signature used in examples

This change ensures that the main function signatures in all example
files are consistent.

Author: jcfr

examples/PyCPPWrapperExample/main.cpp

@@ -45,7 +45,7 @@
 
 #include <QApplication>
 
-int main( int argc, char **argv )
+int main(int argc, char *argv[])
 {
   QApplication qapp(argc, argv);
 

examples/PyCustomMetaTypeExample/main.cpp

@@ -45,7 +45,7 @@
 
 #include <QApplication>
 
-int main( int argc, char **argv )
+int main(int argc, char *argv[])
 {
   QApplication qapp(argc, argv);
 

examples/PyDecoratorsExample/main.cpp

@@ -45,7 +45,7 @@
 
 #include <QApplication>
 
-int main( int argc, char **argv )
+int main(int argc, char *argv[])
 {
   QApplication qapp(argc, argv);
 

examples/PyGettingStarted/main.cpp

@@ -47,7 +47,7 @@
 #include <QPushButton>
 #include <QLineEdit>
 
-int main( int argc, char **argv )
+int main(int argc, char *argv[])
 {
   QApplication qapp(argc, argv);
 

examples/PyGuiExample/main.cpp

@@ -50,7 +50,7 @@
 #include <QLayout>
 
 
-int main( int argc, char **argv )
+int main(int argc, char *argv[])
 {
   QApplication qapp(argc, argv);
 

examples/PyLauncher/main.cpp

@@ -48,7 +48,7 @@
 #include <QMessageBox>
 
 
-int main( int argc, char **argv )
+int main(int argc, char *argv[])
 {
   QApplication qapp(argc, argv);
 

examples/PyScriptingConsole/main.cpp

@@ -52,7 +52,7 @@
 #include <QLayout>
 
 
-int main( int argc, char **argv )
+int main(int argc, char *argv[])
 {
   QApplication qapp(argc, argv);
 

src/PythonQtDoc.h

@@ -572,7 +572,7 @@ the python2x.[lib | dll | so | dynlib].
  #include <QApplication>
  ...
 
- int main( int argc, char **argv )
+ int main(int argc, char *argv[])
  {
 
   QApplication qapp(argc, argv);