docs: fix a few simple typos

There are small typos in:
- doc/src/faq.rst
- psycopg/cursor_type.c
- psycopg/xid_type.c
- scripts/make_errorcodes.py
- scripts/make_errors.py
- tests/dbapi20.py
- tests/test_connection.py

Fixes:
- Should read `publicly` rather than `publically`.
- Should read `unicode` rather than `uniconde`.
- Should read `supposed` rather than `suppsed`.
- Should read `something` rather than `somenthing`.
- Should read `portable` rather than `portible`.
- Should read `exhausted` rather than `exausted`.
- Should read `compliance` rather than `compiliance`.

Closes #1275

1 files changed, 1 insertions, 1 deletions

diff --git a/scripts/make_errors.py b/scripts/make_errors.py
index 0d0a3a81..897f80b4 100755
--- a/scripts/make_errors.py
+++ b/scripts/make_errors.py
@@ -61,7 +61,7 @@ def parse_errors_txt(url):
         m = re.match(r"(.....)\s+(?:E|W|S)\s+ERRCODE_(\S+)(?:\s+(\S+))?$", line)
         if m:
             errcode, macro, spec = m.groups()
-            # skip errcodes without specs as they are not publically visible
+            # skip errcodes without specs as they are not publicly visible
             if not spec:
                 continue
             errlabel = spec.upper()