Letovers from pyftfontview → pyftinspect rename

Fixes “setup.py install”.
diff --git a/Lib/fontTools/inspect.py b/Lib/fontTools/inspect.py
index 5dbe7b4..810898e 100644
--- a/Lib/fontTools/inspect.py
+++ b/Lib/fontTools/inspect.py
@@ -266,7 +266,7 @@
 
 def main(args):
 	if len(args) < 1:
-		print >>sys.stderr, "usage: pyftfontview font..."
+		print >>sys.stderr, "usage: pyftinspect font..."
 		sys.exit(1)
 	for arg in args:
 		Inspect(arg)