document -j option in head comment

diff --git a/main.c b/main.c
index f0bb84f497f12d91f9a1f4416643d80aee002c09..0967442c5a425f5d7c414c39be6b971b571753fc 100644 (file)
--- a/main.c
+++ b/main.c
@@ -8,6 +8,9 @@
  * The arguments must be ordered so that n > m:
  *   n is the number of (more, shorter) input matches of length m
  *   m is the number of (fewer, longer) output matches of length n
  * The arguments must be ordered so that n > m:
  *   n is the number of (more, shorter) input matches of length m
  *   m is the number of (fewer, longer) output matches of length n

+ *
+ * Options:
+ *  -j<jobs>     run in parallel on <jobs> cores

  */
 
 /*
  */
 
 /*