Bump version and remove an useless entry

general.ent

@@ -1,13 +1,13 @@
-<!ENTITY version         "SVN-20180708">
+<!ENTITY version         "SVN-20180718">
 <!ENTITY short-version   "svn">  <!-- Used below in &blfs-book; 
                                       Change to x.y for release but not -rc releases -->
 <!ENTITY generic-version "development"> <!-- Use "development"  or "x.y[-pre{x}]" -->
 
-<!ENTITY versiond        "20180708-systemd">
+<!ENTITY versiond        "20180718-systemd">
 <!ENTITY short-versiond  "systemd">
 <!ENTITY generic-versiond "systemd"> 
 
-<!ENTITY releasedate     "2018 年 7 月 8 日">
+<!ENTITY releasedate     "2018 年 7 月 18 日">
 
 <!ENTITY copyrightdate   "1999-2018"><!-- jhalfs needs a literal dash, not &ndash; -->
 <!ENTITY milestone       "8.3">
@@ -23,7 +23,6 @@
 <!ENTITY livecd-root     "&lfs-root;livecd/">
 <!ENTITY test-results    "&lfs-root;lfs/build-logs/&generic-version;/">
 <!ENTITY errata          "&lfs-root;lfs/errata/&generic-version;/">
-<!ENTITY erratad         "&lfs-root;lfs/errata/&generic-versiond;/">
 <!ENTITY min-kernel      "3.2">
 
 <!ENTITY patches-rootd   "&lfs-root;patches/lfs/&generic-versiond;/">

prologue/errata.xml

@@ -16,7 +16,7 @@
   instructions in this release of LFS need any modifications to accommodate
   security vulnerabilities or other bug fixes, please visit
   <ulink revision="sysv" url="&errata;"/>
-  <ulink revision="systemd" url="&erratad;"/>
+  <ulink revision="systemd" url="&errata;"/>
   before proceeding with your build. You should note any
   changes shown and apply them to the relevant section of the book as you
   progress with building the LFS system.</para-->