-of all debhelper commands. This is useful in some situations, for example,
-if you need to pass -p to all debhelper commands that will be run. One good
-way to set DH_OPTIONS is by using "Target-specific Variable Values" in your
-debian/rules file. See the make documentation for details on doing this.
+of all debhelper commands. Command-specific options will be ignored by
+commands that do not support them.
+
+Arguments are separated by whitespaces unless a whitespace is escaped
+with a backslash character (\). Then the whitespace is treated literally.
+Likewise, the backslash character is treated literally unless it is followed
+by a single whitespace. If a backslash is followed by two or more spaces,
+it will be considered as the last symbol of the argument.
+
+DH_OPTIONS is useful in some situations, for example, if you need to pass -p
+to all debhelper commands that will be run. One good way to set DH_OPTIONS is
+by using "Target-specific Variable Values" in your debian/rules file. See
+the make documentation for details on doing this.