15727941 isisd has spurious "p" listed in getopt argument.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/components/quagga/patches/72-isisgetopt.patch Fri Mar 03 10:53:19 2017 -0800
@@ -0,0 +1,22 @@
+This has been filed as Quagga community bug 941. This patch may be removed
+when upgrading to a version of Quaggawith bug 941 fixed.
+
+*** isisd/isis_main.c
+--- isisd/isis_main.c
+*************** main (int argc, char **argv, char **envp
+*** 269,275 ****
+ /* Command line argument treatment. */
+ while (1)
+ {
+! opt = getopt_long (argc, argv, "df:i:hA:p:P:u:g:vC", longopts, 0);
+
+ if (opt == EOF)
+ break;
+--- 269,275 ----
+ /* Command line argument treatment. */
+ while (1)
+ {
+! opt = getopt_long (argc, argv, "df:i:hA:P:u:g:vC", longopts, 0);
+
+ if (opt == EOF)
+ break;