[dunecontrol]

cleanup fix of fs#1114

[[Imported from SVN: r6752]]

lib/dunemodules.lib

@@ -171,7 +171,7 @@ setup_control_path() {
     DUNE_CONTROL_PATH="$(. $DUNE_OPTS_FILE; eval echo $DUNE_CONTROL_PATH)"
   fi
   # canonicalize path
-  local TMP="$(canonicalname .)"
+  local TMP=""
   # foreach dir in $@
   while read dir; do
     TMP=$TMP:"$(canonicalname $dir)"
@@ -179,7 +179,7 @@ setup_control_path() {
     $(echo $DUNE_CONTROL_PATH | sed -e 's/:\+/:/g' | tr ':' '\n')
 EOF
   # sort+uniq path
-  DUNE_CONTROL_PATH="$(echo $TMP | tr ':' '\n' | sort -u | tr '\n' ':')"
+  DUNE_CONTROL_PATH="$(echo $TMP | tr ':' '\n' | sort -u | tr '\n' ':' | sed -e 's/^://' -e 's/:$//')"
   # safe result
   export DUNE_CONTROL_PATH
 }