Add set -v as we can't pass command line argument with /usr/bin/env

clean_all.sh

@@ -1,5 +1,6 @@
-#!/usr/bin/env bash --verbose
+#!/usr/bin/env bash
 set -e
+set -v
 
 rm -rf target/ build_sysroot/{sysroot/,sysroot_src/,target/,Cargo.lock} perf.data{,.old}
 rm -rf regex/ simple-raytracer/

prepare.sh

@@ -1,5 +1,6 @@
-#!/usr/bin/env bash --verbose
+#!/usr/bin/env bash
 set -e
+set -v
 
 source prepare_build.sh
 

prepare_build.sh

@@ -1,4 +1,5 @@
-#!/usr/bin/env bash --verbose
+#!/usr/bin/env bash
 set -e
+set -v
 
 ./build_sysroot/prepare_sysroot_src.sh