Support symlinking git-annex and git-annex-shell from the Linux standalone bundle into PATH.

Unless busybox doesn't support readlink -f, then it just uses readlink and
symlinking won't work. Also, OSX has no readlink -f so not done there.

Thanks, jlebar.

debian/changelog

@@ -16,6 +16,9 @@ git-annex (5.20140422) UNRELEASED; urgency=medium
     of a repository.
   * Add remote.$name.annex-shell configuration.
     Thanks, Fraser Tweedale 
+  * Support symlinking git-annex and git-annex-shell
+    from the Linux standalone bundle into PATH.
+    Thanks, jlebar.
 
  -- Joey Hess <joeyh@debian.org>  Fri, 02 May 2014 15:28:53 -0300
 

standalone/linux/skel/git

@@ -1,5 +1,5 @@
 #!/bin/sh
-link="$(readlink "$0")" || true
+link="$(readlink -f "$0" 2>/dev/null || readlink "$0")" || true
 if [ -n "$link" ]; then
 	base="$(dirname "$link")"
 else

standalone/linux/skel/git-annex

@@ -1,5 +1,5 @@
 #!/bin/sh
-link="$(readlink "$0")" || true
+link="$(readlink -f "$0" 2>/dev/null || readlink "$0")" || true
 if [ -n "$link" ]; then
 	base="$(dirname "$link")"
 else

standalone/linux/skel/git-annex-shell

@@ -1,5 +1,5 @@
 #!/bin/sh
-link="$(readlink "$0")" || true
+link="$(readlink -f "$0" 2>/dev/null || readlink "$0")" || true
 if [ -n "$link" ]; then
 	base="$(dirname "$link")"
 else

standalone/linux/skel/git-annex-webapp

@@ -1,5 +1,5 @@
 #!/bin/sh
-link="$(readlink "$0")" || true
+link="$(readlink -f "$0" 2>/dev/null || readlink "$0")" || true
 if [ -n "$link" ]; then
 	base="$(dirname "$link")"
 else

standalone/linux/skel/git-receive-pack

@@ -1,5 +1,5 @@
 #!/bin/sh
-link="$(readlink "$0")" || true
+link="$(readlink -f "$0" 2>/dev/null || readlink "$0")" || true
 if [ -n "$link" ]; then
 	base="$(dirname "$link")"
 else

standalone/linux/skel/git-shell

@@ -1,5 +1,5 @@
 #!/bin/sh
-link="$(readlink "$0")" || true
+link="$(readlink -f "$0" 2>/dev/null || readlink "$0")" || true
 if [ -n "$link" ]; then
 	base="$(dirname "$link")"
 else

standalone/linux/skel/git-upload-pack

@@ -1,5 +1,5 @@
 #!/bin/sh
-link="$(readlink "$0")" || true
+link="$(readlink -f "$0" 2>/dev/null || readlink "$0")" || true
 if [ -n "$link" ]; then
 	base="$(dirname "$link")"
 else