[LinuxVersion] Do not log a warning if there are non-digits chars found

A Linux version including non-digits, like 5.15.23-gentoo-dist, is
very common and nothing we should warn about.

emper/lib/LinuxVersion.cpp

@@ -8,7 +8,6 @@
 #include <cstdlib>
 
 #include "Common.hpp"
-#include "Debug.hpp"
 
 static auto checked_strtol(const std::string& s) -> long {
 	static const int DECIMAL = 10;
@@ -25,9 +24,11 @@ static auto checked_strtol(const std::string& s) -> long {
 		DIE_MSG("strtol found no digits in " << s);
 	}
 
-	if (endptr != startptr + s.size()) {
-		LOGW("LinuxVersion compare ignored non digits in " << s)
-	}
+	// TODO: We could report remaining bytes of the string by returning
+	// std::string(endptr) together with 'res' (potentially using
+	// std::pair). Not sure if we even need to check if "endptr !=
+	// startptr + s.size()", or if we could always cosntruct
+	// std::string(endptr), potentially constructing the empty string.
 
 	return res;
 }