Fix missing space with help for `-m compileall -o` (GH-27591)

diff --git a/Lib/compileall.py b/Lib/compileall.py
index 3e00477616df8f048f32483e76797075a4364ab8..3755e76ba813f5b699c20307453a2fd1cd539287 100644 (file)
--- a/Lib/compileall.py
+++ b/Lib/compileall.py
@@ -367,9 +367,9 @@ def main():
                               'environment variable is set, and '
                               '"timestamp" otherwise.'))
     parser.add_argument('-o', action='append', type=int, dest='opt_levels',
-                        help=('Optimization levels to run compilation with.'
-                              'Default is -1 which uses optimization level of'
-                              'Python interpreter itself (specified by -O).'))
+                        help=('Optimization levels to run compilation with. '
+                              'Default is -1 which uses the optimization level '
+                              'of the Python interpreter itself (see -O).'))
     parser.add_argument('-e', metavar='DIR', dest='limit_sl_dest',
                         help='Ignore symlinks pointing outsite of the DIR')
     parser.add_argument('--hardlink-dupes', action='store_true',