fix snap /realpath check #219

x11docker

@@ -1093,10 +1093,10 @@ myrealpath() {                  # real path of possible symlink
   command -v realpath >/dev/null && {
     realpath "$@"
   } || {
-    [ -h "$@" ] && warning "Could not check symbolic link. 
+    [ -h "$@" ] && warning "Could not check for symbolic links. 
   Please install 'realpath' (package 'coreutils'),
   or provide real file path instead of symbolic link path.
-  Symbolic link: $@"
+  Possible symbolic link: $@"
     echo "$@"   ### FIXME: Maybe workaround with ls
     return 1
   }
@@ -6058,7 +6058,7 @@ check_host() {                  # check host environment
   Hostsystem="$(grep '^ID=' /etc/os-release 2>/dev/null | cut -d= -f2 || echo 'unknown')"
 
   # Check if docker is installed with Ubuntu snap
-  realpath $(command -v docker) | grep -q snap && Runsinsnap="yes" || Runsinsnap="no"
+  myrealpath "$(command -v docker)" | grep -q snap && Runsinsnap="yes" || Runsinsnap="no"
 
   # Check libc from host. If same as in container, it is possible to share timezone file
   Hostlibc="unknown"