# HG changeset patch
# User David Barts <n5jrn@me.com>
# Date 1629853272 25200
# Node ID d268ae31f94b783287598ed2ad42d721983ef3fd
# Parent  c20b5314774f9152ce5f9d57c0d30bfb74569d2d
Add docstring.

diff -r c20b5314774f -r d268ae31f94b make-tile
--- a/make-tile	Tue Aug 24 17:40:00 2021 -0700
+++ b/make-tile	Tue Aug 24 18:01:12 2021 -0700
@@ -178,6 +178,9 @@
             sys.stderr.write(line)
 
 def waitfor(proc):
+    """
+    Wait for a GDAL command to finish.
+    """
     global estat
     command_name = os.path.basename(proc.args[0])
     status = proc.wait()