update to srtm_plus colorable

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@54852 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/colors/srtm_plus

@@ -1,15 +1,17 @@
--11000 0 0 0
--5000 0 0 70
--1000 0 10 130
--50 0 70 225
-0 0 191 191
-0.1 57 151 105
-100 117 194 93
-200 230 230 128
-500 202 158 75
-1000 214 187 98
-2000 185 154 100
-3000 220 220 220
-5000 250 250 250
-8850 255 255 255
-nv 255 255 255
+-11000 0:0:0
+-8000 0:0:50
+-5000 10:10:100
+-3000 30:30:150
+-1000 70:70:200
+-100 100:100:225
+0 170:170:255
+0.1 57:151:105
+100 117:194:93
+500 230:230:128
+1000 202:158:75
+2000 185:154:100
+3000 220:220:220
+5000 255:255:255
+8850 100:100:200
+nv 255:255:255
+default 255:255:255