clarify that the names of the configure statements are case-insensitive,...

clarify that the names of the configure statements are case-insensitive, despite style considerations lead to use uppercase for some and lowercase for others

doc/man/man5/ldap.conf.5

@@ -47,6 +47,8 @@ in the
 (or file specified by
 .BR LDAPCONF ).
 .SH OPTIONS
+The configuration options are case-insensitive;
+their value, on a case by case basis, may be case-sensitive.
 The different configuration options are:
 .TP
 .B URI <ldap[s]://[name[:port]] ...>

doc/man/man5/slapd.conf.5

@@ -30,6 +30,8 @@ file consists of a series of global configuration options that apply to
 as a whole (including all backends), followed by zero or more database
 backend definitions that contain information specific to a backend
 instance.
+The configuration options are case-insensitive;
+their value, on a case by case basis, may be case-sensitive.
 .LP
 The general format of
 .B slapd.conf