tests: quote paths in shell script hooks

Without the quoting, MSYS will remove the '\' directory separators, and the repo
can't be opened.

tests/test-bookmarks.t

@@ -924,9 +924,9 b' repositories visible to an external hook'
 
   $ cat > $TESTTMP/checkpending.sh <<EOF
   > echo "@repo"
-  > hg -R $TESTTMP/repo bookmarks
+  > hg -R "$TESTTMP/repo" bookmarks
   > echo "@unrelated"
-  > hg -R $TESTTMP/unrelated bookmarks
+  > hg -R "$TESTTMP/unrelated" bookmarks
   > exit 1 # to avoid adding new bookmark for subsequent tests
   > EOF
 

tests/test-hook.t

@@ -857,9 +857,9 b' repo)'
 
   $ cat > $TESTTMP/checkpending.sh <<EOF
   > echo '@a'
-  > hg -R $TESTTMP/a tip -q
+  > hg -R "$TESTTMP/a" tip -q
   > echo '@a/nested'
-  > hg -R $TESTTMP/a/nested tip -q
+  > hg -R "$TESTTMP/a/nested" tip -q
   > exit 1 # to avoid adding new revision for subsequent tests
   > EOF
   $ hg init nested

tests/test-phases.t

@@ -609,9 +609,9 b' repositories visible to an external hook'
 
   $ cat > $TESTTMP/checkpending.sh <<EOF
   > echo '@initialrepo'
-  > hg -R $TESTTMP/initialrepo phase 7
+  > hg -R "$TESTTMP/initialrepo" phase 7
   > echo '@push-dest'
-  > hg -R $TESTTMP/push-dest phase 6
+  > hg -R "$TESTTMP/push-dest" phase 6
   > exit 1 # to avoid changing phase for subsequent tests
   > EOF
   $ cd ../initialrepo

tests/test-share.t

@@ -168,11 +168,11 b' Therefore, this test scenario ignores ch'
 
   $ cat > $TESTTMP/checkbookmarks.sh <<EOF
   > echo "@repo1"
-  > hg -R $TESTTMP/repo1 bookmarks
+  > hg -R "$TESTTMP/repo1" bookmarks
   > echo "@repo2"
-  > hg -R $TESTTMP/repo2 bookmarks
+  > hg -R "$TESTTMP/repo2" bookmarks
   > echo "@repo3"
-  > hg -R $TESTTMP/repo3 bookmarks
+  > hg -R "$TESTTMP/repo3" bookmarks
   > exit 1 # to avoid adding new bookmark for subsequent tests
   > EOF