Fixed indentation.

src/@dates/pop.m

src/@dates/setdiff.m

src/@dates/sort.m

src/@dates/strings.m

src/@dates/subsref.m

src/@dates/uminus.m

src/@dates/union.m

src/@dates/unique.m

src/@dates/uplus.m

src/@dates/vertcat.m

src/initialize_dates_toolbox.m

src/utilities/convert/date2string.m

src/utilities/convert/freq2string.m

src/utilities/convert/string2date.m

src/utilities/convert/string2freq.m

src/utilities/is/isdate.m

src/utilities/is/isfreq.m

src/utilities/is/ismonthly.m

src/utilities/is/isquaterly.m

src/utilities/is/isstringdate.m