macfuse: add conflict with macfuse4

fuse/macfuse/Portfile

@@ -5,7 +5,7 @@ PortGroup           github 1.0
 
 github.setup        macfuse macfuse 5.1.3 macfuse-
 revision            1
-conflicts           osxfuse
+conflicts           macfuse4 osxfuse
 categories          fuse
 platforms           {darwin >= 21}
 supported_archs     arm64 x86_64
@@ -20,7 +20,6 @@ long_description    FUSE extends macOS by adding support for user space file \
 homepage            https://macfuse.github.io/
 
 github.tarball_from releases
-distname            ${name}-${version}
 use_dmg             yes
 
 checksums           rmd160  9c30a9246bfd37d988902eae1155770fb4ebc31a \