Fix another error is Dockerfile_maiko for wsl1

Author: fghalasz

.github/workflows/Dockerfile_maiko

@@ -26,7 +26,7 @@ RUN cd ${INSTALL_LOCATION}/bin \
 RUN cd ${INSTALL_LOCATION}/bin \
     && arch="$(./machinetype)" \
     && if [ "$arch" = "x86_64" ] || [ "$arch" = "aarch64" ]; then \
-           echo "echo #!/bin/sh" > osversion \
+           echo "#!/bin/sh" > osversion \
            && echo "echo wsl1" >> osversion \
            && ./makeright x cleanup \
            && ./makeright x \