drop the 'X' from recalcAvgCharWidth method name

Lib/fontTools/fontBuilder.py

@@ -491,7 +491,7 @@ class FontBuilder(object):
             assert (
                 "hmtx" in self.font
             ), "the 'hmtx' table must be setup before the 'OS/2' table"
-            self.font["OS/2"].recalcXAvgCharWidth(self.font)
+            self.font["OS/2"].recalcAvgCharWidth(self.font)
         if not (
             "ulUnicodeRange1" in values
             or "ulUnicodeRange2" in values

Lib/fontTools/merge/__init__.py

@@ -158,7 +158,7 @@ class Merger(object):
 		if "OS/2" in font:
 			# https://github.com/fonttools/fonttools/issues/2538
 			# TODO: Add an option to disable this?
-			font["OS/2"].recalcXAvgCharWidth(font)
+			font["OS/2"].recalcAvgCharWidth(font)
 
 
 __all__ = [

Lib/fontTools/subset/__init__.py

@@ -2977,7 +2977,7 @@ class Subsetter(object):
 					log.info("%s Unicode ranges pruned: %s", tag, sorted(new_uniranges))
 				if self.options.recalc_average_width:
 					old_avg_width = font[tag].xAvgCharWidth
-					new_avg_width = font[tag].recalcXAvgCharWidth(font)
+					new_avg_width = font[tag].recalcAvgCharWidth(font)
 					if old_avg_width != new_avg_width:
 						log.info("%s xAvgCharWidth updated: %d", tag, new_avg_width)
 				if self.options.recalc_max_context:

Lib/fontTools/ttLib/tables/O_S_2f_2.py

@@ -300,7 +300,7 @@ class table_O_S_2f_2(DefaultTable.DefaultTable):
 		self.setUnicodeRanges(bits)
 		return bits
 
-	def recalcXAvgCharWidth(self, ttFont):
+	def recalcAvgCharWidth(self, ttFont):
 		"""Recalculate xAvgCharWidth using metrics from ttFont's 'hmtx' table.
 
 		Set it to 0 if the unlikely event 'hmtx' table is not found.