Remove the optional position input (never used) in earthtide

Author: joa-quim

src/geodesy/earthtide.jl

@@ -1,5 +1,5 @@
 """
-	earthtide(cmd0::String=""; kwargs...)
+	earthtide(; kwargs...)
 
 Compute grids or time-series of solid Earth tides.
 
@@ -10,7 +10,7 @@ See full GMT (not the `GMT.jl` one) docs at [`earthtide`]($(GMTdoc)supplements/g
 	imshow(G)
 ```
 """
-function earthtide(cmd0::String=""; kwargs...)
+function earthtide(; kwargs...)
 
 	d = init_module(false, kwargs...)[1]		# Also checks if the user wants ONLY the HELP mode
 
@@ -27,7 +27,7 @@ function earthtide(cmd0::String=""; kwargs...)
 		return R
 	end
 
-	cmd = ((opt_C = add_opt(d, "", "C", [:C :components])) != "") ? cmd * opt_C : cmd * " -Cz"
+	cmd = ((opt_C = add_opt(d, "", "C", [:C :component :components])) != "") ? cmd * opt_C : cmd * " -Cz"
 	opt_G = add_opt(d, "", "G", [:G :grid :outgrid])
 	(length(opt_G) > 3) && (cmd *= opt_G)		# G=true will give " -G", which we'll ignore  (Have to)
 

src/windbarbs/windbarbs.jl

@@ -50,6 +50,7 @@ function windbarbs(arg1::Union{String, GMTgrid}, arg2::Union{String, GMTgrid}; f
 	d, cmd, arg1, arg2, arg3 = grdvector(arg1, arg2; first=first, barbs=true, kwargs...)	# arg3 is a possible CPT
 	cmd[1] = replace(cmd[1], "grdvector" => "grdbarb")
 	cmd[1] = add_opt(d, cmd[1], "Q", [:Q :barbs], (len=("", arg2str, 1), length=("", arg2str, 1), angle="+a", fill="+g", pen="+p", just="+j", justify="+j", speed="+s", width="+w"))
+	delete!(d, :barbs)			# Because if we used 'Q', 'barbs' was still in the dictionary
 	cmd[1] = parse_these_opts(cmd[1], d, [[:A :polar], [:T :signs :sign_scale], [:Z :azim :azimuth :azimuths]])
 
 	finish_PS_module(d, cmd, "", first, !first, true, arg1, arg2, arg3)