Merge fixes for #1455.

[SVN r41972]

example/snippets/regex_match_example.cpp

@@ -65,7 +65,7 @@ istream& getline(istream& is, std::string& s)
 }
 #endif
 
-int main(int argc)
+int main(int argc, const char*[])
 {
    std::string in, out;
    do

example/snippets/regex_split_example_1.cpp

@@ -47,7 +47,7 @@ istream& getline(istream& is, std::string& s)
 #endif
 
 
-int main(int argc)
+int main(int argc, const char*[])
 {
    string s;
    list<string> l;

example/snippets/regex_token_iterator_eg_1.cpp

@@ -40,7 +40,7 @@ istream& getline(istream& is, std::string& s)
 #endif
 
 
-int main(int argc)
+int main(int argc, const char*[])
 {
    string s;
    do{