tests: bulk changes to avoid whitespace errors of check-code.py This is a part of preparation to apply checking with check-code.py on code fragments embedded in *.t test scripts. This revision avoids "whitespace" errors of check-code.py below: - missing whitespace after "," - missing whitespace in expression - no whitespace around "=" for named parameters - wrong whitespace around "="

--- a/tests/test-patch-offset.t	Mon Feb 18 00:27:25 2019 +0900
+++ b/tests/test-patch-offset.t	Mon Feb 18 00:27:25 2019 +0900
@@ -9,7 +9,7 @@
   > for pattern in patterns:
   >     count = int(pattern[0:-1])
   >     char = pattern[-1].encode('utf8') + b'\n'
-  >     fp.write(char*count)
+  >     fp.write(char * count)
   > fp.close()
   > EOF