Minor clean up.

mysql-test/t/analyse.test:
  Added a note about the bug that this test case tests.
sql/sql_analyse.cc:
  Changed function description to standard format.

mysql-test/t/analyse.test

@@ -38,6 +38,11 @@ select * from t2;
 insert into t2 select * from t1 procedure analyse();
 select * from t2;
 drop table t1,t2;
+
+#
+# Bug#2813 - analyse does not quote string values in enums from string
+#
+
 create table t1 (v varchar(128));
 insert into t1 values ('abc'),('abc\'def\\hij\"klm\0opq'),('\''),('\"'),('\\'),('a\0'),('b\''),('c\"'),('d\\'),('\'b'),('\"c'),('\\d'),('a\0\0\0b'),('a\'\'\'\'b'),('a\"\"\"\"b'),('a\\\\\\\\b'),('\'\0\\\"'),('\'\''),('\"\"'),('\\\\'),('The\ZEnd');
 select * from t1 procedure analyse();

sql/sql_analyse.cc

@@ -1029,20 +1029,19 @@ uint check_ulonglong(const char *str, uint length)
 } /* check_ulonlong */
 
 
-
 /*
-  FUNCTION: append_escaped()
- 
+  Quote special characters in a string.
+
+  SYNOPSIS
+   append_escaped(to_str, from_str)
+   to_str (in) A pointer to a String.
+   from_str (to) A pointer to an allocated string
+
   DESCRIPTION
     append_escaped() takes a String type variable, where it appends
     escaped the second argument. Only characters that require escaping
     will be escaped.
 
-  ARGUMENTS
-    A pointer to a String variable, where results will be appended
-    A pointer to a String variable, which is appended to the result
-    String, escaping those characters that require it.
-
   RETURN VALUES
     0 Success
     1 Out of memory