switched all mergeOptionString to pkgs.lib.types.string

pierron recommended the use of types.string over mergeOptionString, as
it is superior but might break things.

For my system the change evaluated to the exactly same.

svn path=/nixos/trunk/; revision=31138

2 files changed, 6 insertions, 6 deletions

diff --git a/modules/system/boot/stage-1.nix b/modules/system/boot/stage-1.nix
index e178f2c04c9..bc27c9f80ff 100644
--- a/modules/system/boot/stage-1.nix
+++ b/modules/system/boot/stage-1.nix
@@ -37,7 +37,7 @@ let
 
     boot.initrd.preLVMCommands = mkOption {
       default = "";
-      merge = mergeStringOption;
+      type = with types; string;
       description = ''
         Shell commands to be executed immediately before lvm discovery.
       '';
@@ -45,7 +45,7 @@ let
 
     boot.initrd.postDeviceCommands = mkOption {
       default = "";
-      merge = mergeStringOption;
+      type = with types; string;
       description = ''
         Shell commands to be executed immediately after stage 1 of the
         boot has loaded kernel modules and created device nodes in
@@ -55,7 +55,7 @@ let
 
     boot.initrd.postMountCommands = mkOption {
       default = "";
-      merge = mergeStringOption;
+      type = with types; string;
       description = ''
         Shell commands to be executed immediately after the stage 1
         filesystems have been mounted.
@@ -65,7 +65,7 @@ let
     boot.initrd.extraUtilsCommands = mkOption {
       internal = true;
       default = "";
-      merge = mergeStringOption;
+      type = with types; string;
       description = ''
         Shell commands to be executed in the builder of the
         extra-utils derivation.  This can be used to provide
@@ -76,7 +76,7 @@ let
     boot.initrd.extraUtilsCommandsTest = mkOption {
       internal = true;
       default = "";
-      merge = mergeStringOption;
+      type = with types; string;
       description = ''
         Shell commands to be executed in the builder of the
         extra-utils derivation after patchelf has done its
diff --git a/modules/system/boot/stage-2.nix b/modules/system/boot/stage-2.nix
index 1fb8379f29a..c45dc348b66 100644
--- a/modules/system/boot/stage-2.nix
+++ b/modules/system/boot/stage-2.nix
@@ -8,7 +8,7 @@ let
       postBootCommands = pkgs.lib.mkOption {
         default = "";
         example = "rm -f /var/log/messages";
-        merge = pkgs.lib.mergeStringOption;
+        type = with pkgs.lib.types; string;
         description = ''
           Shell commands to be executed just before Upstart is started.
         '';