#
# Change the group of files or directories
#
-# Params: 1. Group name
+# Params: 1. Group name or group ID
# 2. List of files
#
# Return: Number of files group successfully changed
# file_create()
#
-# Create a file
+# Create a file, but only if it doesn't already exist
+#
+# (I wanted to use O_EXCL for this, but `perldoc -f sysopen`
+# doesn't say that it is available on every system - so I
+# created this workaround using O_RDONLY and O_CREAT)
#
# Params: File to create
#