fix parsing error during "e1_line N port M"

A misplaced comma in the DEFUN macro argument list resulted in
part of the help message becoming part of the command syntax ;)
diff --git a/src/e1_input_vty.c b/src/e1_input_vty.c
index 10c4687..8ab581f 100644
--- a/src/e1_input_vty.c
+++ b/src/e1_input_vty.c
@@ -70,8 +70,8 @@
 }
 
 DEFUN(cfg_e1line_port, cfg_e1_line_port_cmd,
-	"e1_line <0-255> port <0-255>"
-	E1_LINE_HELP, "Set physical port/span/card number\n"
+	"e1_line <0-255> port <0-255>",
+	E1_LINE_HELP "Set physical port/span/card number\n"
 	"E1/T1 Port/Span/Card number\n")
 {
 	struct e1inp_line *line;