[processing] fixed reading script description for R algorithms

volaya · volaya · commit b500ab506595 · 2017-03-02T13:43:09.000+01:00
fixes #16227
diff --git a/python/plugins/processing/algs/r/RAlgorithm.py b/python/plugins/processing/algs/r/RAlgorithm.py
@@ -139,7 +139,7 @@ def parseDescription(self, lines):
                 self.commands.append(line)
             self.script += line + '\n'
             try:
-                line = lines.next().strip('\n').strip('\r')
+                line = next(lines).strip('\n').strip('\r')
             except:
                 break
 
