scripted-diff: Use new python 3.7 keywords

-BEGIN VERIFY SCRIPT-
 sed -i 's/universal_newlines/text/g' $(git grep -l universal_newlines)
-END VERIFY SCRIPT-

4 files changed, 6 insertions, 6 deletions

diff --git a/contrib/devtools/clang-format-diff.py b/contrib/devtools/clang-format-diff.py
index 98eee67f43..420bf7ff33 100755
--- a/contrib/devtools/clang-format-diff.py
+++ b/contrib/devtools/clang-format-diff.py
@@ -146,7 +146,7 @@ def main():
                          stdout=subprocess.PIPE,
                          stderr=None,
                          stdin=subprocess.PIPE,
-                         universal_newlines=True)
+                         text=True)
     stdout, stderr = p.communicate()
     if p.returncode != 0:
       sys.exit(p.returncode)
diff --git a/contrib/devtools/gen-manpages.py b/contrib/devtools/gen-manpages.py
index 38cdb3acb8..2860e7db99 100755
--- a/contrib/devtools/gen-manpages.py
+++ b/contrib/devtools/gen-manpages.py
@@ -23,7 +23,7 @@ help2man = os.getenv('HELP2MAN', 'help2man')
 # If not otherwise specified, get top directory from git.
 topdir = os.getenv('TOPDIR')
 if not topdir:
-    r = subprocess.run([git, 'rev-parse', '--show-toplevel'], stdout=subprocess.PIPE, check=True, universal_newlines=True)
+    r = subprocess.run([git, 'rev-parse', '--show-toplevel'], stdout=subprocess.PIPE, check=True, text=True)
     topdir = r.stdout.rstrip()
 
 # Get input and output directories.
@@ -36,7 +36,7 @@ versions = []
 for relpath in BINARIES:
     abspath = os.path.join(builddir, relpath)
     try:
-        r = subprocess.run([abspath, "--version"], stdout=subprocess.PIPE, check=True, universal_newlines=True)
+        r = subprocess.run([abspath, "--version"], stdout=subprocess.PIPE, check=True, text=True)
     except IOError:
         print(f'{abspath} not found or not an executable', file=sys.stderr)
         sys.exit(1)
diff --git a/contrib/devtools/test-security-check.py b/contrib/devtools/test-security-check.py
index fe61ab275f..54718fd7a1 100755
--- a/contrib/devtools/test-security-check.py
+++ b/contrib/devtools/test-security-check.py
@@ -39,7 +39,7 @@ def call_security_check(cc, source, executable, options):
         env_flags += filter(None, os.environ.get(var, '').split(' '))
 
     subprocess.run([*cc,source,'-o',executable] + env_flags + options, check=True)
-    p = subprocess.run([os.path.join(os.path.dirname(__file__), 'security-check.py'), executable], stdout=subprocess.PIPE, universal_newlines=True)
+    p = subprocess.run([os.path.join(os.path.dirname(__file__), 'security-check.py'), executable], stdout=subprocess.PIPE, text=True)
     return (p.returncode, p.stdout.rstrip())
 
 def get_arch(cc, source, executable):
diff --git a/contrib/devtools/test-symbol-check.py b/contrib/devtools/test-symbol-check.py
index 624870ebcb..de73b02090 100755
--- a/contrib/devtools/test-symbol-check.py
+++ b/contrib/devtools/test-symbol-check.py
@@ -23,13 +23,13 @@ def call_symbol_check(cc: List[str], source, executable, options):
         env_flags += filter(None, os.environ.get(var, '').split(' '))
 
     subprocess.run([*cc,source,'-o',executable] + env_flags + options, check=True)
-    p = subprocess.run([os.path.join(os.path.dirname(__file__), 'symbol-check.py'), executable], stdout=subprocess.PIPE, universal_newlines=True)
+    p = subprocess.run([os.path.join(os.path.dirname(__file__), 'symbol-check.py'), executable], stdout=subprocess.PIPE, text=True)
     os.remove(source)
     os.remove(executable)
     return (p.returncode, p.stdout.rstrip())
 
 def get_machine(cc: List[str]):
-    p = subprocess.run([*cc,'-dumpmachine'], stdout=subprocess.PIPE, universal_newlines=True)
+    p = subprocess.run([*cc,'-dumpmachine'], stdout=subprocess.PIPE, text=True)
     return p.stdout.rstrip()
 
 class TestSymbolChecks(unittest.TestCase):