changes for c++20

src/sys.cpp

@@ -32,8 +32,8 @@ void sys::getTimeDate(TimeDate* td) {
 void sys::getRam(Memory* mem) {
     static std::array<char, 128> buf;  // file is longer but we only need first 128 chars
     utils::readFile("/proc/meminfo", buf);
-    mem->free = getVal("MemAvailable:", std::string_view(buf));
-    mem->total = getVal("MemTotal:", std::string_view(buf));  // shouldn't really update this on each loop
+    mem->free = getVal("MemAvailable:", buf.data());
+    mem->total = getVal("MemTotal:", buf.data());  // shouldn't really update this on each loop
     mem->used = mem->total - mem->free;
 }