Fix bashisms: add quotes around paths

scripts/build-tsan-for-chromium.sh

Index: scripts/build-tsan-for-chromium.sh
===================================================================
--- scripts/build-tsan-for-chromium.sh	(revision 56521)
+++ scripts/build-tsan-for-chromium.sh	(working copy)
@@ -38,17 +38,17 @@
            VALGRIND_ROOT="$VG_TSAN_DIR" $SPECIAL_TARGET
 
   OUT_BIN="$ORIG_BINARIES_DIR/$PLATFORM/bin"
-  mkdir -p $OUT_BIN
+  mkdir -p "$OUT_BIN"
   # See below for the definition of ORIG_BINARIES_DIR
-  $THISDIR/tsan/tsan/mk-self-contained-valgrind.sh \
+  "$THISDIR/tsan/tsan/mk-self-contained-valgrind.sh" \
     "$VG_TSAN_DIR/out/$PLATFORM" "tsan" \
     "$OUT_BIN/valgrind-tsan.sh"
 }
 
 TSAN_REV=2386
 TSAN_DIR="$THISDIR/tsan" # Directory to checkout TSan sources
-rm -rf $TSAN_DIR
-svn co -r "$TSAN_REV" http://data-race-test.googlecode.com/svn/trunk $TSAN_DIR
+rm -rf "$TSAN_DIR"
+svn co -r "$TSAN_REV" http://data-race-test.googlecode.com/svn/trunk "$TSAN_DIR"
 
 VG_TSAN_DIR="$THISDIR/valgrind" # Directory to checkout Valgrind sources
 sh tsan/third_party/update_valgrind.sh # Fetch sources from valgrind-variant
@@ -81,6 +81,6 @@
 # Ugly hack!
 # We build Valrgind binaries in the $VG_TSAN_DIR/out and then pack
 # them into self-contained .sh file into $ORIG_BINARIES_DIR/$PLATFORM
-ORIG_BINARIES_DIR=$BINARIES_DIR
+ORIG_BINARIES_DIR="$BINARIES_DIR"
 BINARIES_DIR="$VG_TSAN_DIR/out"
 build_valgrind_for_available_platforms