Avoid to apply RLC sorting to "RL*" components.

Also apply it to "RV*" and "RT*"

kiplot/bom/bom.py

@@ -35,6 +35,10 @@ DNC = {
     "no change": 1,
     "fixed": 1
 }
+# RV == Resistor Variable
+# RN == Resistor 'N'(Pack)
+# RT == Thermistor
+RLC_PREFIX = {'R': 1, 'L': 1, 'C': 1, 'RV': 1, 'RN': 1, 'RT': 1}
 
 
 def compare_value(c1, c2, cfg):
@@ -310,7 +314,7 @@ def test_reg_include(cfg, c):
 def get_value_sort(comp):
     """ Try to better sort R, L and C components """
     pref = comp.ref_prefix
-    if pref in 'RLC' or pref == 'RV':
+    if pref in RLC_PREFIX:
         res = comp_match(comp.value)
         if res:
             value, mult, unit = res

kiplot/bom/units.py

@@ -98,7 +98,6 @@ def comp_match(component):
     """
 
     original = component
-    logger.debug(component)
     # Convert the decimal point from the current locale to a '.'
     global decimal_point
     if not decimal_point: