maint: Remove special cases of old version control keywords in code base. * common_size.m, cumtrapz.m, interp1.m, polyarea.m, trapz.m, inpolygon.m, summer.m, javamem.m, duplication_matrix.m, subspace.m, starting_stepsize.m, text.m, errorbar.m, loglogerr.m, peaks.m, __errplot__.m, semilogxerr.m, semilogyerr.m, stemleaf.m, streamtube.m, __pltopt__.m, printd.m, pchip.m, arch_fit.m, arch_rnd.m, arch_test.m, arma_rnd.m, autoreg_matrix.m, bartlett.m, blackman.m, diffpara.m, durbinlevinson.m, fractdiff.m, hamming.m, hanning.m, hurst.m, ifftshift.m, periodogram.m, rectangle_lw.m, rectangle_sw.m, triangle_lw.m, triangle_sw.m, sinetone.m, sinewave.m, spectral_adf.m, spectral_xdf.m, spencer.m, stft.m, synthesis.m, yulewalker.m, bicg.m, bicgstab.m, cgs.m, gmres.m, pcr.m, sprand.m, tfqmr.m, betaincinv.m, betaln.m, gammaincinv.m, hadamard.m, center.m, cov.m, discrete_inv.m, discrete_pdf.m, discrete_rnd.m, empirical_cdf.m, empirical_inv.m, empirical_pdf.m, empirical_rnd.m, iqr.m, kendall.m, mean.m, meansq.m, moment.m, prctile.m, quantile.m, range.m, run_count.m, spearman.m, statistics.m, var.m, zscore.m, datenum.m, datevec.m: Remove special cases of old version control keywords in code base.

To cite GNU Octave in publications use:

  John W. Eaton, David Bateman, Søren Hauberg, Rik Wehbring (2019).
  GNU Octave version 5.2.0 manual: a high-level interactive language for
  numerical computations.
  URL https://www.gnu.org/software/octave/doc/v5.2.0/

A BibTeX entry for LaTeX users is:

  @manual{,
    title     = {{GNU Octave} version 5.2.0 manual: a high-level interactive language for numerical computations},
    author    = {John W. Eaton and David Bateman and S{\o}ren Hauberg and Rik Wehbring},
    year      = {2019},
    url       = {https://www.gnu.org/software/octave/doc/v5.2.0/},
  }

We have invested a lot of time and effort in creating GNU Octave, please
cite it when using it.  See also 'citation pkgname' for citing Octave
packages.