bug#26335: time-stamp-pattern examples unclear

[積丹尼 Dan Jacobson]

time-stamp-pattern is a variable defined in ‘time-stamp.el’.
...
This string has four parts, each of which is optional.
...
Examples:
"-10/"
"-9/^Last modified: %%$"
"@set Time-stamp: %:b %:d, %:y$"
"newcommand{\\\\timestamp}{%%}"

Please say
Examples:

This only has the first part:
"-10/"

This has the first part, followed by the second and maybe? the third part:
"-9/^Last modified: %%$"

This has the second part followed by the ??th part:
"@set Time-stamp: %:b %:d, %:y$"

This has the ??nd part followed by the ??th part:
"newcommand{\\\\timestamp}{%%}"