update mount options to match 6.18 expected format

Author: Ben Hillis

test/linux/unit_tests/lxtfs.c

@@ -285,7 +285,7 @@ Return Value:
             snprintf(
                 Plan9Options,
                 sizeof(Plan9Options),
-                "aname=drvfs;path=%s%s;symlinkroot=/mnt/,cache=5,access=client,msize=262144,trans=virtio",
+                "aname=drvfs;path=%s%s;symlinkroot=/mnt/,cache=0x5,access=client,msize=262144,trans=virtio",
                 Plan9Source,
                 Temp);
         }
@@ -294,7 +294,7 @@ Return Value:
             snprintf(
                 Plan9Options,
                 sizeof(Plan9Options),
-                "aname=drvfs;path=%s%s;symlinkroot=/mnt/,cache=5,access=client,msize=65536,trans=fd,rfd=*,wfd=*",
+                "aname=drvfs;path=%s%s;symlinkroot=/mnt/,cache=0x5,access=client,msize=65536,trans=fd,rfd=*,wfd=*",
                 Plan9Source,
                 Temp);
         }

test/windows/UnitTests.cpp

@@ -1774,7 +1774,7 @@ Error code: Wsl/InstallDistro/WSL_E_DISTRO_NOT_FOUND
             VERIFY_ARE_EQUAL(
                 LxsstuLaunchWsl(
                     L"mount | grep -iF '" TEXT(
-                        LXSS_GPU_DRIVERS_SHARE) L" on /usr/lib/wsl/drivers type 9p (ro,nosuid,nodev,noatime,aname=" TEXT(LXSS_GPU_DRIVERS_SHARE) L";fmask=222;dmask=222,cache=5,access=client,msize=65536,trans=fd,rfd=8,wfd=8)'",
+                        LXSS_GPU_DRIVERS_SHARE) L" on /usr/lib/wsl/drivers type 9p (ro,nosuid,nodev,noatime,aname=" TEXT(LXSS_GPU_DRIVERS_SHARE) L";fmask=222;dmask=222,cache=0x5,access=client,msize=65536,trans=fd,rfd=8,wfd=8)'",
                     nullptr,
                     nullptr,
                     nullptr,