- refactored all places which treated FileData as zero terminated.

src/common/utility/cmdlib.cpp

@@ -36,6 +36,7 @@
 
 #include "cmdlib.h"
 #include "fs_findfile.h"
+#include "filesystem.h"
 #include "files.h"
 #include "md5.h"
 
@@ -1008,3 +1009,17 @@ void uppercopy(char* to, const char* from)
 		to[i] = 0;
 }
 
+//==========================================================================
+//
+// GetStringFromLump
+//
+// Loads a zero terminated string from a lump in the file system
+//==========================================================================
+
+FString GetStringFromLump(int lump)
+{
+	FileData fd = fileSystem.ReadFile(lump);
+	FString ScriptBuffer(fd.GetString(), fd.GetSize());
+	ScriptBuffer.Truncate(strlen(ScriptBuffer.GetChars()));	// this is necessary to properly truncate the generated string to not contain 0 bytes.
+	return ScriptBuffer;
+}