maint: use rows() and columns() to clarify m-files. * gradient.m, interp1q.m, rat.m, tsearchn.m, image.m, imwrite.m, area.m, contourc.m, hist.m, isocolors.m, isonormals.m, meshz.m, print.m, __bar__.m, __go_draw_axes__.m, __interp_cube__.m, __marching_cube__.m, __patch__.m, __print_parse_opts__.m, __quiver__.m, rose.m, shrinkfaces.m, stairs.m, surfnorm.m, tetramesh.m, text.m, deconv.m, spline.m, intersect.m, setdiff.m, setxor.m, union.m, periodogram.m, pcg.m, perms.m: Replace size (x,1) with rows (x) and size(x,2) with columns(x).

FCN_FILE_DIRS += startup

startup_FCN_FILES = \
  startup/__finish__.m

LOCAL_STARTUP_FILE_SRC  = startup/local-rcfile

SYSTEM_STARTUP_FILE_SRC = startup/main-rcfile

SYSTEM_INPUTRC_FILE_SRC = startup/inputrc

STARTUP_FILE_SRC = \
  $(LOCAL_STARTUP_FILE_SRC) \
  $(SYSTEM_STARTUP_FILE_SRC) \
  $(SYSTEM_INPUTRC_FILE_SRC)

FCN_FILES += \
  $(startup_FCN_FILES)

EXTRA_DIST += \
  $(STARTUP_FILE_SRC)

PKG_ADD_FILES += startup/PKG_ADD

DIRSTAMP_FILES += startup/$(octave_dirstamp)