Spawn refactor

src/alire-os_lib.ads

@@ -3,33 +3,32 @@ with Ada.Finalization;
 
 package Alire.OS_Lib is
 
-   function Spawn (Command   : String; 
+   function Spawn (Command   : String;
                    Arguments : String := "") return Integer;
-   --  Returns exit code
-   
-   procedure Spawn (Command   : String; 
+
+   procedure Spawn (Command   : String;
                     Arguments : String:= "");
-   --  Raises PROGRAM_ERROR if exit code /= 0   
-   
+   --  Raises PROGRAM_ERROR if exit code /= 0
+
    type Folder_Guard (<>) is limited private;
-   --  use this type in conjunction with Enter_Folder to ensure that 
+   --  use this type in conjunction with Enter_Folder to ensure that
    --  the CWD is modified and restored when creating/destroying the Folder_Guard
-   
-   function Enter_Folder (Path : String) return Folder_Guard; 
-   
+
+   function Enter_Folder (Path : String) return Folder_Guard;
+
    function Stay_In_Current_Folder return Folder_Guard;
-   
+
    function "/" (L, R : String) return String is
      (Ada.Directories.Compose (L, R));
    --  Shorthand for path composition
-   
+
 private
-   
+
    type Folder_Guard (Original_Len : Natural) is new Ada.Finalization.Limited_Controlled with record
       Original    : String (1 .. Original_Len);
       Initialized : Boolean := False;
    end record;
-   
-   overriding procedure Finalize (This : in out Folder_Guard);   
+
+   overriding procedure Finalize (This : in out Folder_Guard);
 
 end Alire.OS_Lib;