Shorten subsection headings under "File System Mapping of Package/Cla…

…ss Hierarchy"

chapters/packages.tex

@@ -210,7 +210,7 @@ \section{File System Mapping of Package/Class Hierarchy}\label{mapping-package-c
 Tools may also store classes in data-base systems, but that is not standardized.
 \end{nonnormative}
 
-\subsection{Directory Hierarchy Mapping of a Package/Class Hierarchy}\label{mapping-a-package-class-hierarchy-into-a-directory-hierarchy-structured-entity}\label{directory-hierarchy-mapping-of-a-package-Class-hierarchy}
+\subsection{Directory Hierarchy Mapping}\label{mapping-a-package-class-hierarchy-into-a-directory-hierarchy-structured-entity}\label{directory-hierarchy-mapping}
 
 A directory shall contain a node, the file \filename{package.mo}.
 The node shall contain a \lstinline[language=grammar]!stored-definition! that defines a class \lstinline!A! with a name matching the name of the structured entity.
@@ -243,7 +243,7 @@ \subsection{Directory Hierarchy Mapping of a Package/Class Hierarchy}\label{mapp
 \filename{package.mo} (this ensures that the relative order between classes and
 constants stored in different ways is preserved).
 
-\subsection{Single File Mapping of a Package/Class Hierarchy}\label{mapping-a-package-class-hierarchy-into-a-single-file-nonstructured-entity}\label{single-file-mapping-of-a-package-class-hierarchy}
+\subsection{Single File Mapping}\label{mapping-a-package-class-hierarchy-into-a-single-file-nonstructured-entity}\label{single-file-mapping}
 
 When mapping a package or class-hierarchy to a file (e.g.\ the file \filename{A.mo}), that file shall only define a single class \lstinline!A! with a
 name matching the name of the nonstructured entity. In a file hierarchy the files shall have the extension \filename{.mo}.