Fix some documentation issues with scope_exit.

[SVN r50847]

doc/Jamfile.v2

@@ -30,7 +30,6 @@ boostbook doc
     <dependency>../libs/mpi/doc//mpi_autodoc.xml
     #<dependency>../libs/proto/doc//protodoc.xml
     <dependency>../libs/proto/doc//proto
-    <dependency>../libs/scope_exit/doc//scope_exit
     <dependency>../libs/typeof/doc//typeof
     <dependency>../libs/xpressive/doc//autodoc.xml
     <dependency>../libs/xpressive/doc//xpressive
@@ -57,7 +56,6 @@ boostbook doc
     <implicit-dependency>../libs/tr1/doc//tr1
     <implicit-dependency>../libs/foreach/doc//foreach
     <implicit-dependency>../libs/proto/doc//proto
-    <implicit-dependency>../libs/scope_exit/doc//scope_exit
     <implicit-dependency>../libs/typeof/doc//typeof
     <implicit-dependency>../libs/xpressive/doc//xpressive
     <implicit-dependency>../tools/jam/doc//bjam

libs/scope_exit

@@ -1 +1 @@
-Subproject commit 945d709e177ee7d4972ea13cdd00524072fe0933
+Subproject commit a8b0e9fa53508767a95a2b3115e6f7104e391e74