Python: Fix documentation for path injection.

Author: yoff

python/ql/src/Security/CWE-022/PathInjection.ql

@@ -14,7 +14,18 @@
  *       external/cwe/cwe-036
  *       external/cwe/cwe-073
  *       external/cwe/cwe-099
- *
+ */
+
+import python
+import semmle.python.dataflow.new.DataFlow
+import semmle.python.dataflow.new.DataFlow2
+import semmle.python.dataflow.new.TaintTracking
+import semmle.python.dataflow.new.TaintTracking2
+import semmle.python.Concepts
+import semmle.python.dataflow.new.RemoteFlowSources
+import ChainedConfigs12
+
+/*
  * The query detects cases where a user-controlled path is used in an unsafe manner,
  * meaning it is not both normalized and _afterwards_ checked.
  *
@@ -36,15 +47,6 @@
  * to a sink.
  */
 
-import python
-import semmle.python.dataflow.new.DataFlow
-import semmle.python.dataflow.new.DataFlow2
-import semmle.python.dataflow.new.TaintTracking
-import semmle.python.dataflow.new.TaintTracking2
-import semmle.python.Concepts
-import semmle.python.dataflow.new.RemoteFlowSources
-import ChainedConfigs12
-
 // ---------------------------------------------------------------------------
 // Case 1. The path is never normalized.
 // ---------------------------------------------------------------------------