cube: Use local variable which was reported as unused

The local variable first_lower was assigned a value which was not used.

Signed-off-by: Stefan Weil <[email protected]>

Author: stweil

cube/cube_utils.cpp

@@ -310,7 +310,7 @@ bool CubeUtils::IsCaseInvariant(const char_32 *str32, CharSet *char_set) {
     if (first_upper)
       capitalized = true;
     prev_upper = first_upper;
-    prev_lower = islower(str32[0]);
+    prev_lower = first_lower;
     for (int c = 1; str32[c] != 0; ++c) {
       cur_upper = isupper(str32[c]);
       cur_lower = islower(str32[c]);
@@ -329,7 +329,7 @@ bool CubeUtils::IsCaseInvariant(const char_32 *str32, CharSet *char_set) {
     if (first_upper)
       capitalized = true;
     prev_upper = first_upper;
-    prev_lower = unicharset->get_islower(char_set->ClassID(str32[0]));
+    prev_lower = first_lower;
 
     for (int c = 1; c < StrLen(str32); ++c) {
       cur_upper = unicharset->get_isupper(char_set->ClassID(str32[c]));