updated to 7.4.898

updated to 7.4.898

7.4.890  build failure when using dynamic python but not python3
7.4.891  indentation of array initializer is wrong
7.4.892  on MS-Windows the iconv DLL may have a different name
7.4.893  C indenting is wrong below a "case (foo):"
7.4.894  vimrun.exe is picky about the number of spaces before -s
7.4.895  cmdline completion does not work for a command with digits
7.4.896  editing a URL, which netrw should handle, doesn't work
7.4.897  freeze and crash when there is a sleep in a remote command
7.4.898  the 'fixendofline' option is set on with ":edit"