Make version PEP 440 compliant

gns3server/version.py

@@ -23,7 +23,7 @@
 # or negative for a release candidate or beta (after the base version
 # number has been incremented)
 
-__version__ = "2.2.35dev1"
+__version__ = "2.2.35.dev2"
 __version_info__ = (2, 2, 35, 99)
 
 if "dev" in __version__:
@@ -31,7 +31,7 @@ if "dev" in __version__:
         import os
         import subprocess
         if os.path.exists(os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", ".git")):
-            r = subprocess.check_output(["git", "rev-parse", "--short", "HEAD"]).decode().strip()
-            __version__ = "{}-{}".format(__version__, r)
+            r = subprocess.check_output(["git", "rev-parse", "--short", "HEAD"]).decode().strip("\n")
+            __version__ += "+" + r
     except Exception as e:
         print(e)