7c46eab1d6d202ce07bd28fef32d1d8fde44652c
max
  Fri Dec 15 02:54:20 2023 -0800
docing parallelFetch default of 20, thanks to @markd, no redmine

diff --git src/product/ex.hg.conf src/product/ex.hg.conf
index d143307..46a38ff 100644
--- src/product/ex.hg.conf
+++ src/product/ex.hg.conf
@@ -360,30 +360,31 @@
 # gbdbLoc2=http://hgdownload.soe.ucsc.edu/gbdb/
 
 # Bottleneck info for taming hyperactive web bots
 # bottleneck.host=yourHost
 # bottleneck.port=17776
 
 # directory for temporary bbi file caching, default is /tmp/udcCache
 # see also: README.udc
 # udc.cacheDir=/tmp/udcCache
 # it is OK to specify udc.cachDir=../trash/udcCache
 # to place it in trash.
 
 # Parallel fetching of remote network resources using bigDataUrl such
 #       as trackHubs and customTracks
 # how many threads to use (set to 0 to disable)
+# If not specified at all, the default is used: 20 threads.
 parallelFetch.threads=20
 # how long to wait in seconds for parallel fetch to finish
 parallelFetch.timeout=90
 
 # An include directive can be used to read text from other files.  this is
 # especially useful when there are multiple browsers hidden behind virtual
 # hosts.  The path to the include file is either absolute or relative to
 # the including file (*not* relative to the current direct directory).
 #   include ../cgi-bin-default/hg.conf
 
 # A delete directive can be used to delete previouly defined values.
 # this is useful in conjunction with include when an undefined
 # value has different meaning than an empty value:
 #   delete archivecentral.db [othervars ...]