manpage pedantry

from man-pages (7):
provides a comma-separated list of related man pages, ordered by section
number and then alphabetically by name, possibly followed by other
related pages or documents. Do not terminate this with a period.

Change-Id: I6763b3b3a89f3c2e9ed5c1a4e9d05fb9ce85dd40
diff --git a/man/cwebp.1 b/man/cwebp.1
index f2a9b8b..9a51272 100644
--- a/man/cwebp.1
+++ b/man/cwebp.1
@@ -268,7 +268,7 @@
 
 .SH SEE ALSO
 .BR dwebp (1),
-.BR gif2webp (1).
+.BR gif2webp (1)
 .br
 Please refer to http://developers.google.com/speed/webp/ for additional
 information.
diff --git a/man/dwebp.1 b/man/dwebp.1
index 7b1f452..840b4ad 100644
--- a/man/dwebp.1
+++ b/man/dwebp.1
@@ -112,8 +112,8 @@
 
 .SH SEE ALSO
 .BR cwebp (1),
-.BR webpmux (1),
-.BR gif2webp (1).
+.BR gif2webp (1),
+.BR webpmux (1)
 .br
 Please refer to http://developers.google.com/speed/webp/ for additional
 information.
diff --git a/man/gif2webp.1 b/man/gif2webp.1
index 597e20d..7f227be 100644
--- a/man/gif2webp.1
+++ b/man/gif2webp.1
@@ -135,9 +135,9 @@
 Debian project (and may be used by others).
 
 .SH SEE ALSO
-.BR dwebp (1),
 .BR cwebp (1),
-.BR webpmux (1).
+.BR dwebp (1),
+.BR webpmux (1)
 .br
 Please refer to http://developers.google.com/speed/webp/ for additional
 information.
diff --git a/man/webpmux.1 b/man/webpmux.1
index 02d13a1..5095432 100644
--- a/man/webpmux.1
+++ b/man/webpmux.1
@@ -171,9 +171,9 @@
 for the Debian project (and may be used by others).
 
 .SH SEE ALSO
-.BR dwebp (1),
 .BR cwebp (1),
-.BR gif2webp (1).
+.BR dwebp (1),
+.BR gif2webp (1)
 .br
 Please refer to http://developers.google.com/speed/webp/ for additional
 information.