add GU Guam to state_names reference

CHANGELOG.md

@@ -35,9 +35,10 @@ a polygon, but does not (#660).
 ### Bug Fixes
 
 - Account for `MapPlot` custom domain that crosses anti-meridian (#655).
+- Add GU "Guam" to pyiem.reference.state_names.
 - Allow non-conforming `DHMSG` within SHEF.
 - Cleanup and improve windrose title / time filtering logic (#663).
-- Correct VTEC database accounting issue for emergencies (#676). 
+- Correct VTEC database accounting issue for emergencies (#676).
 - Correct VTEC database partitioning for difficult event spanning years.
 - Draw mask on all known sectored plots.
 - Increased default `pyiem.util.get_dbconn` connect timeout to 30 seconds.
@@ -85,7 +86,6 @@ entries for multiple-level freezing airmets (#628).
 
 ## **1.13.0** (24 Jun 2022)
 
-
 ### API Changes
 
 - Added `sqlalchemy` as a hard package requirement.

src/pyiem/data/reference/state_names.txt

@@ -9,6 +9,7 @@ DC District of Columbia
 DE Delaware
 FL Florida
 GA Georgia
+GU Guam
 HI Hawaii
 IA Iowa
 ID Idaho

tests/test_reference.py

@@ -4,6 +4,12 @@
 from pyiem import reference
 
 
+def test_states():
+    """Test that we have the same number of states"""
+    assert len(reference.state_names) == len(reference.state_bounds)
+    _ = [reference.state_bounds[x] for x in reference.state_names]
+
+
 def test_reference():
     """Can we import everything from our API."""
     for name in reference._onthefly_dict: