Minor cppcheck fixes

common.cpp

@@ -50,10 +50,10 @@ static std::string string_mangle(const std::string& str) {
 	return tmp;
 }
 
-void show_histogram(const pCaches& fcc, std::string Cache::*ptr, const std::string& caption, bool html, bool sort_by_val) {
+void show_histogram(const pCaches& cc, std::string Cache::*ptr, const std::string& caption, bool html, bool sort_by_val) {
 	std::map<std::string, int> histogram;
 
-	for (auto el : fcc)
+	for (auto el : cc)
 		histogram[el->*ptr]++;
 
 	show_histogram(histogram, caption, html, sort_by_val);

geostat.cpp

@@ -440,12 +440,12 @@ int main(int argc, char** argv) {
 		for (int i = y_min; i <= y_max; i++) { // i -> years in rows
 			std::cout << "<tr><th>" << i + 1900 << "</th> ";
 			for (int j = 1; j <= 12; j++) { // j -> months in cols
-				std::map<int, int> dates;
+				std::map<int, int> days_count;
 				for (auto el : cc) {
 					if (el.date_tm.tm_mon == j - 1 && el.date_tm.tm_year == i)
-						dates[el.date_tm.tm_mday]++;
+						days_count[el.date_tm.tm_mday]++;
 				}
-				std::cout << "<td style=\"--percent: " << dates.size() * 100 / max << "%\"><span>" << dates.size() << "</span></td>";
+				std::cout << "<td style=\"--percent: " << days_count.size() * 100 / max << "%\"><span>" << days_count.size() << "</span></td>";
 			}
 			std::cout << "</tr>\n";
 		}