Fix bash scripts

Fix bash scripts

Signed-off-by: Bensuperpc <bensuperpc@gmail.com>

imagefiles/build-and-install-curl.sh

@@ -18,7 +18,7 @@ function do_curl_build {
     # We do this shared to avoid obnoxious linker issues where git couldn't
     # link properly. If anyone wants to make this build statically go for it.
     LIBS=-ldl CFLAGS=-Wl,--exclude-libs,ALL ./configure --with-ssl --disable-static > /dev/null
-    make -j$(nproc) > /dev/null
+    make -j"$(nproc)" > /dev/null
     make install > /dev/null
 }