Update comment

Author: hoodmane

Makefile.pre.in

@@ -3107,7 +3107,7 @@ Python/asm_trampoline.o: $(srcdir)/Python/asm_trampoline.S
 	$(CC) -c $(PY_CORE_CFLAGS) -o $@ $<
 
 Python/emscripten_trampoline_inner.wasm: $(srcdir)/Python/emscripten_trampoline_inner.c
-	# emcc has a path like emsdk/upstream/emscripten/emcc and we're looking for emsdk/upstream/bin/clang.
+	# emcc has a path that ends with emsdk/upstream/emscripten/emcc, we're looking for emsdk/upstream/bin/clang.
 	$$(dirname $$(dirname $(CC)))/bin/clang -o $@ $< -mgc -O2 -Wl,--no-entry -Wl,--import-table -Wl,--import-memory -target wasm32-unknown-unknown -nostdlib
 
 Python/emscripten_trampoline.o: $(srcdir)/Python/emscripten_trampoline.c Python/emscripten_trampoline_inner.wasm