Fixed comment

imgui.cpp

@@ -4049,7 +4049,7 @@ bool ImGui::RadioButton(const char* label, int* v, int v_button)
     return pressed;
 }
 
-// Wrapper for stb_textedit.h to edit text (our wrapper is for: statically sized buffer, single-line, ASCII, fixed-width font)
+// Wrapper for stb_textedit.h to edit text (our wrapper is for: statically sized buffer, single-line, UTF-8)
 static int     STB_TEXTEDIT_STRINGLEN(const STB_TEXTEDIT_STRING* obj)                             { return (int)ImStrlenW(obj->Text); }
 static ImWchar STB_TEXTEDIT_GETCHAR(const STB_TEXTEDIT_STRING* obj, int idx)                      { return obj->Text[idx]; }
 static float   STB_TEXTEDIT_GETWIDTH(STB_TEXTEDIT_STRING* obj, int line_start_idx, int char_idx)  { (void)line_start_idx; return obj->Font->CalcTextSizeW(obj->FontSize, FLT_MAX, &obj->Text[char_idx], &obj->Text[char_idx]+1, NULL).x; }