instmods: sanity for _mpargs

diff --git a/dracut-functions b/dracut-functions
index 556d309..6c16cae 100755 (executable)
--- a/dracut-functions
+++ b/dracut-functions
@@ -892,17 +892,20 @@ instmods() {
                 # This introduces 2 incompatible meanings for =* arguments
                 # to instmods.  We need to decide which one to keep.
                 if [[ $_mod = =ata && -f $srcmods/modules.block ]]; then
-                    ( echo -n "$_mpargs"; egrep 'ata|ahci' "${srcmods}/modules.block" ) \
+                    ( [[ "$_mpargs" ]] && echo $_mpargs
+                      egrep 'ata|ahci' "${srcmods}/modules.block" ) \
                     | instmods
                 elif [ -f $srcmods/modules.${_mod#=} ]; then
-                    ( echo -n "$_mpargs"; cat "${srcmods}/modules.${_mod#=}" ) \
+                    ( [[ "$_mpargs" ]] && echo $_mpargs
+                      cat "${srcmods}/modules.${_mod#=}" ) \
                     | instmods
                 else
-                    ( echo -n "$_mpargs"; find "$srcmods" -path "*/${_mod#=}/*" ) \
+                    ( [[ "$_mpargs" ]] && echo $_mpargs
+                      find "$srcmods" -path "*/${_mod#=}/*" ) \
                     | instmods
                 fi
                 ;;
-            --*) _mpargs+="${_mod##*/}"$'\n' ;;  # one _mod per line; lops '--'
+            --*) _mpargs+=" $_mod" ;;
             i2o_scsi) return ;; # Do not load this diagnostic-only module
             *)  _mod=${_mod##*/}