OptionParser.[ch]pp: Adding an option for the 'about' message to be unformatted, which assumes it is formatted within the calling code

Author: andrewdavidsmith

OptionParser.cpp

@@ -561,6 +561,12 @@ OptionParser::about_message() const {
 }
 
 
+string
+OptionParser::about_message_raw() const {
+  return prog_descr;
+}
+
+
 string
 OptionParser::invalid_leftover() const {
   static const string left_tag("invalid leftover args [should be ");

OptionParser.hpp

@@ -122,6 +122,7 @@ class OptionParser {
 
   bool about_requested() const {return about_request;}
   std::string about_message() const;
+  std::string about_message_raw() const;
   std::string invalid_leftover() const;
 
   bool option_missing() const {