fixing typos and l10n

apps/files/js/file-upload.js

@@ -169,7 +169,7 @@ OC.Upload = {
 	},
 	/**
 	 * TODO checks the list of existing files prior to uploading and shows a simple dialog to choose
-	 * skip all, replace all or choosw which files to keep
+	 * skip all, replace all or choose which files to keep
 	 * @param array selection of files to upload
 	 * @param callbacks to call:
 	 *		onNoConflicts,

apps/files/js/files.js

@@ -499,7 +499,7 @@ var folderDropOptions={
 						$('#notification').fadeIn();
 					}
 				} else {
-					OC.dialogs.alert(t('Error moving file'), t('core', 'Error'));
+					OC.dialogs.alert(t('files', 'Error moving file'), t('files', 'Error'));
 				}
 			});
 		});
@@ -537,7 +537,7 @@ var crumbDropOptions={
 						$('#notification').fadeIn();
 					}
 				} else {
-					OC.dialogs.alert(t('Error moving file'), t('core', 'Error'));
+					OC.dialogs.alert(t('files', 'Error moving file'), t('files', 'Error'));
 				}
 			});
 		});