cleanup: remove pointless r-prefixes on single-quoted strings This is the promised second step on single-quoted strings. These had existed because our source transformer didn't turn r'' into b'', so we had tagged some strings as r-strings to get "native" strings on both Pythons. Now that the transformer is gone, we can dispense with this nonsense. Methodology: I ran hg locate 'set:added() or modified() or clean()' | egrep '.*\.py$' | xargs egrep --color=never -n -- \[\^b\]\[\^a-z\]r\'\[\^\'\\\\\]\*\'\[\^\'\ in an emacs grep-mode buffer, and then used a keyboard macro to iterate over the results and remove the r prefix as needed. # skip-blame removing unneeded r prefixes left over from Python 3 migration. Differential Revision: https://phab.mercurial-scm.org/D7306

--- a/mercurial/scmposix.py	Sun Nov 10 07:30:14 2019 -0800
+++ b/mercurial/scmposix.py	Fri Nov 08 11:19:20 2019 -0800
@@ -84,7 +84,7 @@
             if not os.isatty(fd):
                 continue
             arri = fcntl.ioctl(fd, TIOCGWINSZ, b'\0' * 8)
-            height, width = array.array(r'h', arri)[:2]
+            height, width = array.array('h', arri)[:2]
             if width > 0 and height > 0:
                 return width, height
         except ValueError: