Fix wrong message sent: must be negated instead of negative

Author: j4yk

src/FS-AnsiStreams.package/FSReadStream.class/instance/skip..st

@@ -5,6 +5,6 @@ skip: anInteger
 		ifFalse: [anInteger timesRepeat: [
 				self atEnd ifTrue: [^ self].
 				self converter nextFromStream: self].
-			anInteger negative timesRepeat: [
+			anInteger negated timesRepeat: [
 				self atStart ifTrue: [^ self].
 				self converter backFromStream: self]]

src/FS-AnsiStreams.package/FSReadStream.class/methodProperties.json

@@ -19,5 +19,5 @@
 		"peek" : "jr 4/13/2017 15:40",
 		"peekFor:" : "jr 2/21/2017 14:18",
 		"size" : "CamilloBruni 8/12/2011 20:49",
-		"skip:" : "jr 7/16/2017 16:37",
+		"skip:" : "jr 1/1/2019 18:42",
 		"upToEnd" : "jr 4/13/2017 16:30" } }