I just faced faced the problem that I wnated to use the “svn setprop” command on the command line to ignore multiple elements. You could create a file which contains a newline seperated list of files to ignore and pass this file with -F.
svn propset svn:ignore -F ignorelist.txt .
But this requires an additional file. I found the solution in the comments of this article: You could just open quotes and then enter newlines on the command line itself, until the quotes are closed. This means you can use it like this:
svn propset svn:ignore “first second third” .