test/contrib: Fix invalid escapes in regex strings

Flagged by flake8 v3.6.0, as W605, plus a few others identified
incidentally, e.g. 59ffecf66cf4d08c4b431e457b083878d66a3fd6.

Note that r"\n" matches to "\n" under re.match/search.

2 files changed, 4 insertions, 4 deletions

diff --git a/contrib/linearize/linearize-data.py b/contrib/linearize/linearize-data.py
index 468aec04b5..95754ab937 100755
--- a/contrib/linearize/linearize-data.py
+++ b/contrib/linearize/linearize-data.py
@@ -263,12 +263,12 @@ if __name__ == '__main__':
     f = open(sys.argv[1], encoding="utf8")
     for line in f:
         # skip comment lines
-        m = re.search('^\s*#', line)
+        m = re.search(r'^\s*#', line)
         if m:
             continue
 
         # parse key=value lines
-        m = re.search('^(\w+)\s*=\s*(\S.*)$', line)
+        m = re.search(r'^(\w+)\s*=\s*(\S.*)$', line)
         if m is None:
             continue
         settings[m.group(1)] = m.group(2)
diff --git a/contrib/linearize/linearize-hashes.py b/contrib/linearize/linearize-hashes.py
index 8529470e09..02c96d2a75 100755
--- a/contrib/linearize/linearize-hashes.py
+++ b/contrib/linearize/linearize-hashes.py
@@ -106,12 +106,12 @@ if __name__ == '__main__':
     f = open(sys.argv[1], encoding="utf8")
     for line in f:
         # skip comment lines
-        m = re.search('^\s*#', line)
+        m = re.search(r'^\s*#', line)
         if m:
             continue
 
         # parse key=value lines
-        m = re.search('^(\w+)\s*=\s*(\S.*)$', line)
+        m = re.search(r'^(\w+)\s*=\s*(\S.*)$', line)
         if m is None:
             continue
         settings[m.group(1)] = m.group(2)