Reserve -E/-e for extensions, syntax yet to be defined.

doc/devel/args

 Tools           ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
-ldapdelete        CD   HI K M OPQR  U*WXYZ  cd f h  k  n p     vwx
-ldapmodify        CD F HI K M OPQR  U*WXYZabcd f h  k  n p r t vwx
-ldapmodrdn        CD   HI K M OPQR  U*WXYZ  cd f h  k  n p rs  vwx
-ldappasswd      A CD   HI     O QRS U*WXYZa  d   h          s  vwx   
-ldapsearch      A CD   HI KLM OPQRSTU*WXYZab*d f h  kl n p  stuvwx z
+ldapdelete        CD*  HI K M OPQR  U*WXYZ  cd*f h  k  n p     vwx
+ldapmodify        CD*F HI K M OPQR  U*WXYZabcd*f h  k  n p r t vwx
+ldapmodrdn        CD*  HI K M OPQR  U*WXYZ  cd*f h  k  n p rs  vwx
+ldappasswd      A CD*  HI     O QRS U*WXYZa  d*  h          s  vwx   
+ldapsearch      A CD*  HI KLM OPQRSTU*WXYZab*d*f h  kl n p  stuvwx z
 
 Other Clients   ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
 fax500                               *         f h    m
@@ -17,11 +17,13 @@ ud                 D                 *      cd f     l  p   s uv
 
 
 * reserved
-	EGJNegijmoqy
+	GJNgijmoqy
 
 * General flags:
 	-C Chase Referrals
 	-D Bind DN
+	-E Extensions
+	-e Extensions
 	-H URI
 	-P protocol version
 	-V version information