Document the -a flag.

svn path=/head/; revision=78389

gnu/usr.bin/send-pr/send-pr.1

@@ -63,6 +63,10 @@ send-pr \- send problem report (PR) to a central support site
 .B \-c
 .I address
 ]
+[
+.B \-a
+.I file
+]
 .SH DESCRIPTION
 .B send-pr
 is a tool used to submit 
@@ -134,6 +138,14 @@ in the
 .B Cc:
 header of the message.
 .TP
+.BI \-a " file"
+Copy the specified
+.I file
+into the
+.B Fix:
+section.
+Binary files are uuencoded.
+.TP
 .B \-P
 print the form specified by the environment variable 
 .B PR_FORM