gcc / clang did not like backslashes inside comments

xs/src/libslic3r/Config.cpp

@@ -20,7 +20,7 @@
 
 namespace Slic3r {
 
-// Escape \n, \r and \\ 
+// Escape \n, \r and backslash
 std::string escape_string_cstyle(const std::string &str)
 {
     // Allocate a buffer twice the input string length,
@@ -94,7 +94,7 @@ std::string escape_strings_cstyle(const std::vector<std::string> &strs)
     return std::string(out.data(), outptr - out.data());
 }
 
-// Unescape \n, \r and \\ 
+// Unescape \n, \r and backslash
 bool unescape_string_cstyle(const std::string &str, std::string &str_out)
 {
     std::vector<char> out(str.size(), 0);