[processing] add missed import

Author: alexbruy

python/plugins/processing/modeler/ModelerParametersDialog.py

@@ -26,7 +26,22 @@
 __revision__ = '$Format:%H$'
 
 from PyQt4.QtCore import Qt, QUrl, QMetaObject
-from PyQt4.QtGui import QDialog, QDialogButtonBox, QLabel, QLineEdit, QFrame, QPushButton, QSizePolicy, QVBoxLayout, QHBoxLayout, QTabWidget, QWidget, QScrollArea, QComboBox, QTableWidgetItem, QMessageBox
+from PyQt4.QtGui import (QDialog,
+                         QDialogButtonBox,
+                         QLabel,
+                         QLineEdit,
+                         QFrame,
+                         QPushButton,
+                         QSizePolicy,
+                         QVBoxLayout,
+                         QHBoxLayout,
+                         QTabWidget,
+                         QWidget,
+                         QScrollArea,
+                         QComboBox,
+                         QTableWidgetItem,
+                         QMessageBox,
+                         QTextBrowser)
 from PyQt4.QtNetwork import QNetworkRequest, QNetworkReply
 
 from qgis.core import QgsNetworkAccessManager