filesystem: mmap search not specific enough

The grep command that populates mmap_procs is too unspecific, and will return false positives from /usr or /etc if you attempt to manage mount points named /u or /e, respectively.

Author: kermat

heartbeat/Filesystem

@@ -584,7 +584,7 @@ get_pids()
 fi
 elif [ "$FORCE_UNMOUNT" = "safe" ]; then
 procs=$(find /proc/[0-9]*/ -type l -lname "${dir}/*" -or -lname "${dir}" 2>/dev/null | awk -F/ '{print $3}')
-mmap_procs=$(grep " ${dir}" /proc/[0-9]*/maps | awk -F/ '{print $3}')
+mmap_procs=$(grep " ${dir}/" /proc/[0-9]*/maps | awk -F/ '{print $3}')
 printf "${procs}\n${mmap_procs}" | sort | uniq
 fi
 }