CONFIG: typo in config.csh/mpi

- also handle stray semi-colons in foamCleanPath.
  Treat like a ':' separator.
  They are incorrect and potentially problematic for shell evals.

bin/foamCleanPath

@@ -181,7 +181,7 @@ fi
 # or may contain ':' separators
 
 oldIFS="$IFS"       # Preserve initial IFS
-IFS=': '            # Split on colon, whitespace
+IFS=':; '           # Split on colon, whitespace (semi-colon for good measure)
 set -- $*
 
 if [ -n "$optVerbose" ]
@@ -203,7 +203,7 @@ do
 done
 printDebug "intermediate>$dirList<"
 
-IFS=': '            # Split on colon, whitespace (to avoid surprises)
+IFS=':; '           # Split on colon, whitespace (semi-colon for good measure)
 set -- $dirList
 
 IFS="$oldIFS"       # Restore initial IFS

etc/config.csh/mpi

@@ -56,7 +56,7 @@ case OPENMPI:
     # Respect MPI_ARCH_PATH if set to a valid directory (ie, from user adjustments)
     if (! $?MPI_ARCH_PATH ) setenv MPI_ARCH_PATH
     if (! -d "$MPI_ARCH_PATH" ) then
-        setenv mpiDir=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$FOAM_MPI
+        setenv MPI_ARCH_PATH $WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$FOAM_MPI
     endif
 
     # Inform openmpi where to find its install directory