Consistently use 4 spaces for indentation in shell scripts

wrappers/clang-target-wrapper.sh

@@ -16,24 +16,24 @@ ARCH=$(echo $TARGET | sed 's/-.*//')
 SYSROOT="$(cd "$DIR"/../$TARGET && pwd)"
 case $ARCH in
 i686)
-	# Dwarf is the default for i686, but currently there's an issue
-	# in libunwind with unwinding clang generated dwarf opcodes on 32 bit
-	# x86, pending resolution at https://reviews.llvm.org/D38680.
-	ARCH_FLAGS=-fsjlj-exceptions
-	;;
+    # Dwarf is the default for i686, but currently there's an issue
+    # in libunwind with unwinding clang generated dwarf opcodes on 32 bit
+    # x86, pending resolution at https://reviews.llvm.org/D38680.
+    ARCH_FLAGS=-fsjlj-exceptions
+    ;;
 x86_64)
-	# Explicitly request dwarf on x86_64; SEH is the default there but
-	# libcxxabi lacks support for it.
-	ARCH_FLAGS=-fdwarf-exceptions
-	;;
+    # Explicitly request dwarf on x86_64; SEH is the default there but
+    # libcxxabi lacks support for it.
+    ARCH_FLAGS=-fdwarf-exceptions
+    ;;
 armv7)
-	# Dwarf is the default here.
-	ARCH_FLAGS=
-	;;
+    # Dwarf is the default here.
+    ARCH_FLAGS=
+    ;;
 aarch64)
-	# Dwarf is the default on aarch64; enable emulated TLS since native
-	# TLS isn't implemented yet.
-	ARCH_FLAGS=-femulated-tls
-	;;
+    # Dwarf is the default on aarch64; enable emulated TLS since native
+    # TLS isn't implemented yet.
+    ARCH_FLAGS=-femulated-tls
+    ;;
 esac
 $DIR/$EXE -target $TARGET -rtlib=compiler-rt -stdlib=libc++ -fuse-ld=lld --sysroot="$SYSROOT" $ARCH_FLAGS -Qunused-arguments "$@"

wrappers/ld-wrapper.sh

@@ -1,17 +1,17 @@
 #!/bin/sh
 
 if [ "$1" = "--help" ]; then
-	cat<<EOF
+    cat<<EOF
 GNU ld impersonation
 We don't support --enable-auto-import, but libtool may look for this flag.
 EOF
-	exit 0
+    exit 0
 fi
 if [ "$1" = "-v" ]; then
-	# This isn't implemented in the lld mingw frontend, so don't
-	# pass the -m <machine> option in this case.
-	ld.lld -v
-	exit 0
+    # This isn't implemented in the lld mingw frontend, so don't
+    # pass the -m <machine> option in this case.
+    ld.lld -v
+    exit 0
 fi
 
 TARGET="$(basename $0 | sed 's/-[^-]*$//')"