librtmp flashver m3u8 / strm fix

For some of you that may also of had some failing rtmp links.

You have to add flashVer before swfUrl, you also have to replace spaces with \20 so

flashVer=WIN 22,0,0,209

becomes

flashVer=WIN\2022,0,0,209

some small oddity to do with librtmp vs rtmpdump

https://rtmpdump.mplayerhq.hu/librtmp.3.html

Quote:Additional options may be specified by appending space-separated key=value pairs to the URL. Special characters in values may need to be escaped to prevent misinterpretation by the option parser. The escape encoding uses a backslash followed by two hexadecimal digits representing the ASCII value of the character. E.g., spaces must be escaped as \20 and backslashes must be escaped as \5c.