Fix typo.

pgp/pgp.spec

@@ -29,7 +29,7 @@
 
 #   package information
 Name:         pgp
-Summary:      Preety Good Privacy
+Summary:      Pretty Good Privacy
 URL:          http://www.pgpi.org/
 Vendor:       Philip Zimmerman
 Packager:     The OpenPKG Project

pgp2/pgp2.spec

@@ -29,7 +29,7 @@
 
 #   package information
 Name:         pgp2
-Summary:      Preety Good Privacy
+Summary:      Prety Good Privacy
 URL:          http://www.pgpi.org/
 Vendor:       Philip Zimmerman
 Packager:     The OpenPKG Project