Make length mark spacing combining, fixes #56

sources/NotoSerifKannada.glyphs

@@ -1,5 +1,5 @@
 {
-.appVersion = "3205";
+.appVersion = "3217";
 DisplayStrings = (
 "/da_kannada/da_kannada/o_kannada/anusvaraaboveright_kannada/da_kannada/da_kannada \012/da_kannada/da_kannada/anusvaraaboveright_kannada \012/a_kannada/aa_kannada/i_kannada/ii_kannada/u_kannada/uu_kannada/rVocalic_kannada/rrVocalic_kannada/lVocalic_kannada/llVocalic_kannada/e_kannada/ee_kannada/ai_kannada/o_kannada/oo_kannada/au_kannada/ka_kannada/kha_kannada/ga_kannada/gha_kannada/nga_kannada/ca_kannada/cha_kannada/ja_kannada/jha_kannada/nya_kannada/tta_kannada/ttha_kannada/dda_kannada/ddha_kannada/nna_kannada/ta_kannada/tha_kannada/da_kannada/dha_kannada/na_kannada/pa_kannada/pha_kannada/ba_kannada/bha_kannada/ma_kannada/ya_kannada/ra_kannada/rra_kannada/la_kannada/lla_kannada/va_kannada/sha_kannada/ssa_kannada/sa_kannada/ha_kannada/llla_kannada 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 "/reph_kannada/nakaarapollu_kannada/nine_kannada",
@@ -31979,8 +31979,8 @@ leftKerningGroup = KND_length_L;
 rightKerningGroup = KND_length_R;
 unicode = 0CD5;
 script = kannada;
-category = Letter;
-subCategory = Other;
+category = Mark;
+subCategory = "Spacing Combining";
 },
 {
 glyphname = ailength_kannada;