[ips_layer] fix TLTD 60 FPS mod specifically

Signed-off-by: lizzie <lizzie@eden-emu.dev>

src/core/file_sys/ips_layer.cpp

@@ -267,6 +267,9 @@ void IPSwitchCompiler::Parse(std::span<u8 const> bytes) {
                     ++p;
                 }
             }
+            // remove trailing
+            for (; p > sline.cbegin() && std::isspace(*p); --p)
+                ;
             // now we have the preprocessed string ;)
             std::string_view pp_str(sline_start, p);
             if (pp_str.size() > 0 && !parse_line(pp_str)) {