man: Fix some weston.ini.man typesetting macros

This patch fixes a couple of misuses around .TP 7 macros that wrongly
limited right margins and relative identation.

Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Tested-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

man/weston.ini.man

@@ -107,7 +107,6 @@ directory are:
 .fi
 .RE
 .TP 7
-.TP 7
 .BI "modules=" xwayland.so,cms-colord.so
 specifies the modules to load (string). Available modules in the
 .IR "__weston_modules_dir__"
@@ -121,7 +120,6 @@ directory are:
 .fi
 .RE
 .TP 7
-.TP 7
 .BI "backend=" headless-backend.so
 overrides defaults backend. Available backend modules in the
 .IR "__weston_modules_dir__"
@@ -138,6 +136,7 @@ directory are:
 .BR x11-backend.so
 .fi
 .RE
+.TP 7
 .BI "gbm-format="format
 sets the GBM format used for the framebuffer for the GBM backend. Can be
 .B xrgb8888,