[RFA] re-initialize height to 0 during setshow.exp

[Denis PILAT <denis.pilat@st.com>]

In testsuite/gdb.base/setshow.exp, after "set height 100", it could 
occur that following commands require user interaction to proceed like:
---Type <return> to continue, or q <return> to quit---
(At least it's the case for our gdb in "show user" since we have defined 
a lot of user command.)

Attach is a patch that fixes a problem in this test.
We could also add
    gdb_test "set height 0" "" "set height 0"
or increase the height to a very large number, but I prefer to reset 
height to 0 like done in gdb.exp.

-- 
Denis

2007-04-02  Denis Pilat  <denis.pilat@st.com>

	* gdb.base/setshow.exp: Reset height to 0 after having set it to 100.

Index: testsuite/gdb.base/setshow.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/setshow.exp,v
retrieving revision 1.5
diff -u -p -r1.5 setshow.exp
--- testsuite/gdb.base/setshow.exp      9 Jan 2007 17:59:11 -0000       1.5
+++ testsuite/gdb.base/setshow.exp      2 Apr 2007 14:46:58 -0000
@@ -155,6 +155,16 @@ gdb_test "show environment FOOBARBAZ" "F
 gdb_test "set height 100" "" "set height 100"
 #test show height 100
 gdb_test "show height" "Number of lines gdb thinks are in a page is 100..*" "show height"
+
+# back to infinite height to avoid pagers
+send_gdb "set height 0\n"
+    gdb_expect 10 {
+    -re "$gdb_prompt $" {}
+    timeout {
+        warning "Couldn't set the height to 0"
+    }
+}
+
 #test set history expansion on
 gdb_test "set history expansion on" "" "set history expansion on"
 #test show history expansion on