Fix fret ruler extension parsing scales

extensions/fablabchemnitz/fret_ruler/scales/cet29.scl

@@ -0,0 +1,100 @@
+! cet29.scl
+!
+95th root of 5
+ 95
+!
+ 29.32962
+ 58.65924
+ 87.98885
+ 117.31847
+ 146.64809
+ 175.97771
+ 205.30733
+ 234.63694
+ 263.96656
+ 293.29618
+ 322.62580
+ 351.95542
+ 381.28503
+ 410.61465
+ 439.94427
+ 469.27389
+ 498.60351
+ 527.93312
+ 557.26274
+ 586.59236
+ 615.92198
+ 645.25160
+ 674.58121
+ 703.91083
+ 733.24045
+ 762.57007
+ 791.89969
+ 821.22931
+ 850.55892
+ 879.88854
+ 909.21816
+ 938.54778
+ 967.87740
+ 997.20701
+ 1026.53663
+ 1055.86625
+ 1085.19587
+ 1114.52549
+ 1143.85510
+ 1173.18472
+ 1202.51434
+ 1231.84396
+ 1261.17358
+ 1290.50319
+ 1319.83281
+ 1349.16243
+ 1378.49205
+ 1407.82167
+ 1437.15128
+ 1466.48090
+ 1495.81052
+ 1525.14014
+ 1554.46976
+ 1583.79937
+ 1613.12899
+ 1642.45861
+ 1671.78823
+ 1701.11785
+ 1730.44746
+ 1759.77708
+ 1789.10670
+ 1818.43632
+ 1847.76594
+ 1877.09555
+ 1906.42517
+ 1935.75479
+ 1965.08441
+ 1994.41403
+ 2023.74364
+ 2053.07326
+ 2082.40288
+ 2111.73250
+ 2141.06212
+ 2170.39174
+ 2199.72135
+ 2229.05097
+ 2258.38059
+ 2287.71021
+ 2317.03983
+ 2346.36944
+ 2375.69906
+ 2405.02868
+ 2434.35830
+ 2463.68792
+ 2493.01753
+ 2522.34715
+ 2551.67677
+ 2581.00639
+ 2610.33601
+ 2639.66562
+ 2668.99524
+ 2698.32486
+ 2727.65448
+ 2756.98410
+ 5/1