updated for version 7.4.520
Problem:    Sun PCK locale is not recognzed.
Solution:   Add PCK in the table. (Keiichi Oono)
Added tag v7-4-520 for changeset 392dad030b8d
updated for version 7.4.521
Problem:    When using "vep" a mark is moved to the next line. (Maxi Padulo,
	    Issue 283)
Solution:   Decrement the line number. (Christian Brabandt)
Added tag v7-4-521 for changeset 39274bfbfba5