Remove periods from error messages

Standardized error messages by removing trailing periods for consistency.

Author: MarkRosemaker

errors.go

@@ -32,10 +32,10 @@ var (
 	ETEMPUNAVAIL        = errors.New("Resource temporarily not available, please try again later")
 	EMACMISMATCH        = errors.New("MAC verification failed")
 	EBADATTR            = errors.New("Bad node attribute")
-	ETOOMANYCONNECTIONS = errors.New("Too many connections on this resource.")
-	EWRITE              = errors.New("File could not be written to (or failed post-write integrity check).")
-	EREAD               = errors.New("File could not be read from (or changed unexpectedly during reading).")
-	EAPPKEY             = errors.New("Invalid or missing application key.")
+	ETOOMANYCONNECTIONS = errors.New("Too many connections on this resource")
+	EWRITE              = errors.New("File could not be written to (or failed post-write integrity check)")
+	EREAD               = errors.New("File could not be read from (or changed unexpectedly during reading)")
+	EAPPKEY             = errors.New("Invalid or missing application key")
 	ESSL                = errors.New("SSL verification failed")
 	EGOINGOVERQUOTA     = errors.New("Not enough quota")
 	EMFAREQUIRED        = errors.New("Multi-factor authentication required")