proper naming of history file

aql2/src/prompt/Prompt.cpp

@@ -31,7 +31,7 @@ char * Prompt::stripwhite ( char * begin ) {
 	return begin;
 }
-Prompt::Prompt ( cli::Environment environment ) : m_prefix ( "> " ), m_history_file ( std::string ( std::getenv ( "HOME" ) ) + "/.aql" ), m_environment ( std::move ( environment ) ) {
+Prompt::Prompt ( cli::Environment environment ) : m_prefix ( "> " ), m_history_file ( std::string ( std::getenv ( "HOME" ) ) + "/.aql_history" ), m_environment ( std::move ( environment ) ) {
 	read_history ( m_history_file.c_str ( ) );
 }