commit bash-20150828 snapshot

lib/readline/doc/hsuser.texi

@@ -249,6 +249,11 @@ the input stream, making it easy to repeat commands, insert the
 arguments to a previous command into the current input line, or
 fix errors in previous commands quickly.
 
+@ifset BashFeatures
+History expansion is performed immediately after a complete line
+is read, before the shell breaks it into words.
+@end ifset
+
 History expansion takes place in two parts.  The first is to determine
 which line from the history list should be used during substitution.
 The second is to select portions of that line for inclusion into the
@@ -262,7 +267,9 @@ History expansions are introduced by the appearance of the
 history expansion character, which is @samp{!} by default.
 @ifset BashFeatures
 Only @samp{\} and @samp{'} may be used to escape the history expansion
-character.
+character, but the history expansion character is
+also treated as quoted if it immediately precedes the closing double quote
+in a double-quoted string. 
 @end ifset
 
 @ifset BashFeatures