[gjs: 1/5] build: Use '!=' instead of 'is not' to compare string

[Philip Chimento <pchimento src gnome org>]

commit 7764f43da12d18fa48e00f121dee2b549d4f3784
Author: Robert Mader <robert mader posteo de>
Date:   Sun Mar 29 15:51:47 2020 +0200

    build: Use '!=' instead of 'is not' to compare string
    
    Fixes a warning during install with newer python versions:
    ```
    SyntaxWarning: "is not" with a literal. Did you mean "!="?
    ```

 build/symlink-gjs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build/symlink-gjs.py b/build/symlink-gjs.py
index 0802669b..1a001fb2 100644
--- a/build/symlink-gjs.py
+++ b/build/symlink-gjs.py
@@ -12,7 +12,7 @@ install_prefix = os.environ.get('MESON_INSTALL_PREFIX')
 bindir = sys.argv[1]
 if destdir is not None:
     # os.path.join() doesn't concat paths if one of them is absolute
-    if install_prefix[0] == '/' and os.name is not 'nt':
+    if install_prefix[0] == '/' and os.name != 'nt':
         installed_bin_dir = os.path.join(destdir, install_prefix[1:], bindir)
     else:
         installed_bin_dir = os.path.join(destdir, install_prefix, bindir)