syscalls testsuite: use different escape sequence

The syscall testsuite uses embedded "// TEXT" markers in the .c files
to designate expected output, kind of like the "dg-" bunch in the gcc
test suite.  Unfortunately, "//" is not a unique prefix to systemtap
tests, and in particular it can occur in the system headers that will
be picked up with the "gcc -E -C ..." invocation in test.tcl.

So let's switch to "//staptest//".  test.tcl is also modified to
escape a few more mischevious regexp metacharacters that might sneak
past.

1 files changed, 6 insertions, 6 deletions

diff --git a/testsuite/systemtap.syscall/swap.c b/testsuite/systemtap.syscall/swap.c
index 3708a477..8fcf9946 100755..100644
--- a/testsuite/systemtap.syscall/swap.c
+++ b/testsuite/systemtap.syscall/swap.c
@@ -6,22 +6,22 @@
 int main()
 {
   swapon("foobar_swap", 0);
-  // swapon ("foobar_swap", 0) =
+  //staptest// swapon ("foobar_swap", 0) =
 
   swapon("foobar_swap", ((1 << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK) | SWAP_FLAG_PREFER);
-  // swapon ("foobar_swap", 32769) =
+  //staptest// swapon ("foobar_swap", 32769) =
 
   swapon("foobar_swap", ((7 << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK) | SWAP_FLAG_PREFER);
-  // swapon ("foobar_swap", 32775) =
+  //staptest// swapon ("foobar_swap", 32775) =
 
   swapon(0, 0);
-  // swapon (NULL, 0) =
+  //staptest// swapon (NULL, 0) =
 
   swapoff("foobar_swap");
-  // swapoff ("foobar_swap") =
+  //staptest// swapoff ("foobar_swap") =
 
   swapoff(0);
-  // swapoff (NULL) =
+  //staptest// swapoff (NULL) =
 
   return 0;
 }