correct argument names after confirming against lucee, ACF, and boxlang docs

Author: acterry

data/en/structappend.json

@@ -12,9 +12,9 @@
 	"related":[],
 	"description":"Appends one structure to another.",
 	"params": [
-		{"name":"destStruct","description":"Structure to append.","required":true,"default":"","type":"struct","values":[]},
-		{"name":"sourceStruct","description":"Structure that contains the data to append to destStruct","required":true,"default":"","type":"struct","values":[]},
-		{"name":"overwriteFlag","description":"Whether values in sourceStruct should overwrite corresponding values in\n destStruct or not.","required":false,"default":true,"type":"boolean","values":[true,false]}
+		{"name":"struct1","description":"Structure to which struct2 is appended.","required":true,"default":"","type":"struct","values":[]},
+		{"name":"struct2","description":"Structure that contains the data to append to struct1.","required":true,"default":"","type":"struct","values":[]},
+		{"name":"overwriteFlag","description":"Whether values in struct2 should overwrite corresponding values in\n struct1 or not.","required":false,"default":true,"type":"boolean","values":[true,false]}
 	],
 	"engines": {
 		"coldfusion": {"minimum_version":"", "notes":"CF6+ can be used on XML objects as well as structures.", "docs":"https://helpx.adobe.com/coldfusion/cfml-reference/coldfusion-functions/functions-s/structappend.html"},