A few random fixes to manual.texi.

Docs/manual.texi:
  A few random fixes.

Docs/manual.texi

@@ -52027,7 +52027,7 @@ as the successor of the GNU Library Public License, version 2, hence the
 version number 2.1.]
 @end display
 
-@appendixsubsec Preamble
+@appendixsec Preamble
 
   The licenses for most software are designed to take away your
 freedom to share and change it.  By contrast, the GNU General Public
@@ -52130,7 +52130,7 @@ former contains code derived from the library, whereas the latter must
 be combined with the library in order to run.
 
 @iftex
-@appendixsubsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+@appendixsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 @end iftex
 @ifinfo
 @center GNU LESSER GENERAL PUBLIC LICENSE
@@ -52526,7 +52526,7 @@ DAMAGES.
 @end ifinfo
 
 @page
-@appendixsubsec How to Apply These Terms to Your New Libraries
+@appendixsec How to Apply These Terms to Your New Libraries
 
   If you develop a new library, and you want it to be of the greatest
 possible use to the public, we recommend making it free software that
@@ -52575,10 +52575,10 @@ Ty Coon, President of Vice
 
 That's all there is to it!
 
+
 @node Placeholder, Function Index, LGPL license, Top
 @appendix Pieces of the manual in transit
 
-
 @menu
 * Installing binary::           
 * Building clients::