Removed a redundant method, and corrected some things.

isAscii() was originally included as I copied LoadAscii v1 originally, and as it's not actually used internally i've removed it form v2. v1's isAscii is only used once (and by another class), and LoadAscii (the v1 class) is specifically used then, so it's safe to remove it from v2. In theory, that call to v1 should probably be using a file descriptor instead.

The spacers 2d array now has it's bounds corrected for both the new item, and reducing the second dimension as much wasn't used.

The Filename property has had an error in it's description corrected.

Refs #7732

Code/Mantid/Framework/DataHandling/inc/MantidDataHandling/LoadAscii2.h

@@ -60,8 +60,6 @@ namespace Mantid
       /// Returns a confidence value that this algorithm can load a file
       virtual int confidence(Kernel::FileDescriptor & descriptor) const;
 
-      static bool isAscii(FILE *file);
-
     protected:
       /// Read the data from the file
       virtual API::Workspace_sptr readData(std::ifstream & file);

Code/Mantid/Framework/DataHandling/src/LoadAscii2.cpp

@@ -88,32 +88,6 @@ namespace Mantid
       return confidence;
     }
 
-    /**
-    * Check if a file is a text file
-    * @param file :: The file pointer
-    * @returns true if the file an ascii text file, false otherwise
-    */
-    bool LoadAscii2::isAscii(FILE *file)
-    {
-      char data[256];
-      char *pend = &data[fread(data, 1, sizeof(data), file)];
-      fseek(file,0,SEEK_SET);
-      /*
-      * Call it a binary file if we find a non-ascii character in the 
-      * first 256 bytes of the file.
-      */
-      for( char *p = data;  p < pend; ++p )
-      {
-        unsigned long ch = (unsigned long)*p;
-        if( !(ch <= 0x7F) )
-        {
-          return false;
-        }
-
-      }
-      return true;
-    }
-
     //--------------------------------------------------------------------------
     // Protected methods
     //--------------------------------------------------------------------------
@@ -481,11 +455,11 @@ namespace Mantid
       exts.push_back("");
 
       declareProperty(new FileProperty("Filename", "", FileProperty::Load, exts),
-        "The name of the text file to read, including its full or relative path. The file extension must be .tst, .dat, or .csv");
+        "The name of the text file to read, including its full or relative path. The file extension must be .txt, .dat, or .csv");
       declareProperty(new WorkspaceProperty<Workspace>("OutputWorkspace",
         "",Direction::Output), "The name of the workspace that will be created, filled with the read-in data and stored in the [[Analysis Data Service]].");
 
-      std::string spacers[6][6] = { {"Automatic", ",\t:; "}, {"CSV", ","},
+      std::string spacers[7][2] = { {"Automatic", ",\t:; "}, {"CSV", ","},
       {"Tab", "\t"}, {"Space", " "}, {"Colon", ":"}, {"SemiColon", ";"}, {"UserDefined", "UserDefined"}  };
       // For the ListValidator
       std::vector<std::string> sepOptions;