This patch fixes some function headers in demo code used during 'make check'
--- a/examples/demo_info.cpp
+++ b/examples/demo_info.cpp
@@ -309,7 +309,7 @@
 
 #define DEBUG
 
-int main( unsigned int argc, char * const argv[])
+int main(int argc, char * const argv[])
 {
   ID3D_INIT_DOUT();
 
--- a/examples/demo_convert.cpp
+++ b/examples/demo_convert.cpp
@@ -84,7 +84,7 @@
   }
 }
 
-int main( unsigned int argc, char * const argv[])
+int main(int argc, char * const argv[])
 {
   flags_t ulFlag = ID3TT_ALL;
   gengetopt_args_info args;
--- a/examples/demo_copy.cpp
+++ b/examples/demo_copy.cpp
@@ -81,7 +81,7 @@
   }
 }
 
-int main( unsigned int argc, char * const argv[])
+int main(int argc, char * const argv[])
 {
   int ulFlag = ID3TT_ID3;
   ID3D_INIT_DOUT();
--- a/examples/demo_tag.cpp
+++ b/examples/demo_tag.cpp
@@ -46,7 +46,7 @@
     os << "v2";
 }
 
-int main( unsigned int argc, char * const argv[])
+int main(int argc, char * const argv[])
 {
   int ulFlag = ID3TT_ID3;
   ID3D_INIT_DOUT();