comctl32_tests: Janitorial: write-strings warning fix

[Andrew Talbot]

Changelog:
    comctl32_tests: Janitorial: write-strings warning fix.

diff -urN a/dlls/comctl32/tests/tab.c b/dlls/comctl32/tests/tab.c
--- a/dlls/comctl32/tests/tab.c	2006-05-27 17:25:57.000000000 +0100
+++ b/dlls/comctl32/tests/tab.c	2006-05-27 18:45:43.000000000 +0100
@@ -57,6 +57,9 @@
 {
     HWND handle;
     TCITEM tcNewTab;
+    static char text1[] = "Tab 1",
+    text2[] = "Wide Tab 2",
+    text3[] = "T 3";
 
     handle = CreateWindow (
 	WC_TABCONTROLA,
@@ -71,13 +74,13 @@
     SendMessage (handle, WM_SETFONT, 0, (LPARAM) hFont);
 
     tcNewTab.mask = mask;
-    tcNewTab.pszText = "Tab 1";
+    tcNewTab.pszText = text1;
     tcNewTab.iImage = 0;
     SendMessage (handle, TCM_INSERTITEM, 0, (LPARAM) &tcNewTab);
-    tcNewTab.pszText = "Wide Tab 2";
+    tcNewTab.pszText = text2;
     tcNewTab.iImage = 1;
     SendMessage (handle, TCM_INSERTITEM, 1, (LPARAM) &tcNewTab);
-    tcNewTab.pszText = "T 3";
+    tcNewTab.pszText = text3;
     tcNewTab.iImage = 2;
     SendMessage (handle, TCM_INSERTITEM, 2, (LPARAM) &tcNewTab);