use $@ over $*. SC2048

I agree to license my contributions to each file under the terms given
at the top of each file I changed.

mk/cargo.sh

@@ -43,7 +43,7 @@ if [ -n "${ANDROID_NDK_ROOT-}" ]; then
   android_tools=${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64/bin
 fi
 
-for arg in $*; do
+for arg in "$@"; do
   case $arg in
     --target=*)
       target=${arg#*=}

mk/check-symbol-prefixes.sh

@@ -17,7 +17,7 @@
 set -eux -o pipefail
 IFS=$'\n\t'
 
-for arg in $*; do
+for arg in "$@"; do
   case $arg in
     --target=*)
       target=${arg#*=}

mk/install-build-tools.sh

@@ -18,7 +18,7 @@ set -eux -o pipefail
 IFS=$'\n\t'
 
 toolchain=stable
-for arg in $*; do
+for arg in "$@"; do
   case $arg in
     --target=*)
       target=${arg#*=}