curl.1: minor language fix
Bug: http://curl.haxx.se/mail/archive-2014-07/0006.html
diff --git a/docs/curl.1 b/docs/curl.1
index e4beadb..b47bc4b 100644
--- a/docs/curl.1
+++ b/docs/curl.1
@@ -103,8 +103,8 @@
If you prefer a progress "bar" instead of the regular meter, \fI-#\fP is your
friend.
.SH OPTIONS
-Options start with one or two dashes. Many of the options require an addition
-value next to it.
+Options start with one or two dashes. Many of the options require an
+additional value next to them.
The short "single-dash" form of the options, -d for example, may be used with
or without a space between it and its value, although a space is a recommended
