Fix filenames for NB filter transmission curves.

The raw data files downloaded from the Subaru website
don't have the leading zero that we use in the data ID
filter names, so we have to add it manually.

python/lsst/obs/hsc/makeTransmissionCurves.py

@@ -44,8 +44,11 @@ def getLongFilterName(short):
     value from the short one (e.g. 'r') declared canonical in afw.image.Filter.
     """
     HscMapper.addFilters()
-    if short.startswith("HSC") or short.startswith("NB"):
+    if short.startswith("HSC"):
         return short
+    if short.startswith("NB") or short.startswith("IB"):
+        num = int(short[2:].lstrip("0"))
+        return "%s%04d" % (short[:2], num)
     f = Filter(short)
     for a in f.getAliases():
         if a.startswith("HSC") or a.startswith("NB") or a.startswith("IB"):
@@ -163,7 +166,7 @@ def getFilterTransmission():
             throughputAtMin=0.0, throughputAtMax=0.0
         )
     for filename in glob.glob(os.path.join(DATA_DIR, "wHSC-*.txt")):
-        band = os.path.split(filename)[1][len("wHSC-"): -len(".txt")]
+        band = getLongFilterName(os.path.split(filename)[1][len("wHSC-"): -len(".txt")])
         if band not in result:
             result[band] = readTransmissionCurveFromFile(filename, atMin=0.0, atMax=0.0)
     return {HSC_BEGIN: result}