06886baf58cbcece09362bbcf55ab91b18077f69
max
  Tue Mar 21 02:27:55 2023 -0700
tiny docs change, refs #30316

diff --git src/utils/bigGuessDb/bigGuessDb src/utils/bigGuessDb/bigGuessDb
index 6d9a58e..c57f76e 100755
--- src/utils/bigGuessDb/bigGuessDb
+++ src/utils/bigGuessDb/bigGuessDb
@@ -10,31 +10,31 @@
 
 # ==== functions =====
 def parseArgs():
     " setup logging, parse command line arguments and options. -h shows auto-generated help page "
     parser = optparse.OptionParser("usage: %prog [options] filename - given a bigBed or "\
             "bigWig file, " \
         "guess the assembly based on the chrom sizes")
 
     parser.add_option("-d", "--debug", dest="debug", action="store_true", \
         help="show debug messages")
     parser.add_option("", "--index", dest="index", action="store_true", \
         help="go /hive/data/genomes and build an index file with all chromSizes")
     parser.add_option("-b", "--best", dest="best", action="store_true", \
         help="only print a single string, the best matching assembly, or 'emptyFile' or 'notFound'. ")
     parser.add_option("", "--indexFile", dest="indexFname", action="store", \
-        help="Use specified index file, default is %default", default="~/.guessAssembly.txt.gz")
+        help="Use specified index file, default is %default. Use --index to create this file.", default="~/.guessAssembly.txt.gz")
     (options, args) = parser.parse_args()
 
     if args==[] and not options.index:
         parser.print_help()
         exit(1)
 
     if options.debug:
         logging.basicConfig(level=logging.DEBUG)
         logging.getLogger().setLevel(logging.DEBUG)
     else:
         logging.basicConfig(level=logging.INFO)
         logging.getLogger().setLevel(logging.INFO)
 
     return args, options