Fix shebang lines in python scripts

docs/scripts/ns-html2rst

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 import sys, re, subprocess
 
 def run():

test/Driver/Dependencies/Inputs/fake-build-for-bitcode.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 # Emulates the frontend of an -embed-bitcode job. That means we have to handle
 # -emit-bc and -c actions.

test/Driver/Dependencies/Inputs/fake-build-whole-module.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 # Emulates the frontend of a -whole-module-optimization compilation.
 

test/Driver/Dependencies/Inputs/modify-non-primary-files.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 # modify-non-primary-files.py simulates a build where the user is modifying the
 # source files during compilation.

test/Driver/Dependencies/Inputs/update-dependencies-bad.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 # Fails if the input file is named "bad.swift"; otherwise dispatches to
 # update-dependencies.py.
@@ -12,7 +12,7 @@
 
 if os.path.basename(primaryFile) == 'bad.swift':
     print "Handled", os.path.basename(primaryFile)
-    exit(1)
+    sys.exit(1)
 
 dir = os.path.dirname(os.path.abspath(__file__))
 execfile(os.path.join(dir, "update-dependencies.py"))

test/Driver/Dependencies/Inputs/update-dependencies.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 # update-dependencies.py simulates a Swift compilation for the purposes of
 # dependency analysis. That means it has two tasks:

test/Inputs/getmtime.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 import os
 import sys

utils/apply-fixit-edits.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 #===--- apply-fixit-edits.py - Tool for applying edits from .remap files ---===#
 #

utils/demo-tool

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 import json
 import optparse

utils/gyb.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # GYB: Generate Your Boilerplate (improved names welcome; at least
 # this one's short).  See -h output for instructions
 

utils/pre-commit-benchmark

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 # Note: it doesn't matter what directory you invoke this in; it uses
 # your SWIFT_BUILD_ROOT and SWIFT_SOURCE_ROOT settings, just like

utils/recursive-lipo

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 import argparse
 import os.path

utils/submit-benchmark-results

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 """
 Utility script for submitting benchmark results to an LNT server.

utils/viewcfg

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 # A script for viewing the CFG of SIL and llvm IR.