Fixed char -> unsigned char in s_mem_crea_str. Removed left-over

reference conuting.

src/libraries/libmisc/s-string.c

@@ -127,7 +127,7 @@ s_crea_str (String	* dest_string,
 
 EXPORT  Success
 s_mem_crea_str (String	    	     * dest_string,
-	    	const char  * buffer,
+	    	const unsigned char  * buffer,
 	    	String_size   	       length)
 {
     void		* temp_ptr;	/* To hold result from malloc/realloc
@@ -139,9 +139,6 @@ s_mem_crea_str (String	    * dest_string,
 	return FAILURE;
     }
 
-    if ( dest_string->string == NULL )
-	++no_of_allocated_strings;
-
     FREE_0 (dest_string->string);
     dest_string->string = temp_ptr;
     
@@ -174,9 +171,6 @@ s_size_crea_str(String      *result,
 	return FAILURE;
     }
 
-    if ( result->string == NULL )
-	++no_of_allocated_strings;
-
     FREE_0 (result->string);
     result->string = temp_ptr;
     result->len = length;