[PATCH] Makefile: Remove usage of deprecated Python "has_key" method

[David Aguilar <davvid@gmail.com>]

"has_key" is a deprecated dictionary method in Python 2.6+.
Simplify the sys.path manipulation for installed scripts by
passing a default value to os.getenv().

SCRIPT_PYTHON is currently empty but this future-proofs us.
It also fixes things for users who maintain local git forks
with their own SCRIPT_PYTHON additions.

Signed-off-by: David Aguilar <davvid@gmail.com>
---
 Makefile |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 3a6c6ea..806ccdf 100644
--- a/Makefile
+++ b/Makefile
@@ -1609,9 +1609,8 @@ $(patsubst %.py,%,$(SCRIPT_PYTHON)): % : %.py
 	    -e '}' \
 	    -e 's|^import sys.*|&; \\\
 	           import os; \\\
-	           sys.path[0] = os.environ.has_key("GITPYTHONLIB") and \\\
-	                         os.environ["GITPYTHONLIB"] or \\\
-	                         "@@INSTLIBDIR@@"|' \
+	           sys.path.insert(0, os.getenv("GITPYTHONLIB",\
+	                                        "@@INSTLIBDIR@@"));|' \
 	    -e 's|@@INSTLIBDIR@@|'"$$INSTLIBDIR"'|g' \
 	    $@.py >$@+ && \
 	chmod +x $@+ && \
-- 
1.7.0.3.291.g5e4f6