fix EOL in string error

Error when running a DaVinci job introduced in !619 (merged) :

    "E.g. for a local DB:\n./run davinci [command] --inputfiledb Upgrade_Bd2KstarMuMu_ldst\n 
                                                                                             ^
SyntaxError: EOL while scanning string literal```

DaVinciSys/scripts/davinci

@@ -127,8 +127,8 @@ def run_job(configurables, export=None, with_defaults=False, dry_run=None):
 
 inputfiledb_helper = "TestFileDB-like file containing job input and conditions information (.yaml). Takes the pair of values 'filedb-key', 'filedb-path'." \
                       "If you want to use the standard TestFileDB set 'filedb-path' = '-'.\n" \
-                      "E.g. for a local DB:\n./run davinci [command] --inputfiledb Upgrade_Bd2KstarMuMu_ldst\n 
-                       Phys/DaVinci/options/DaVinciDB-Example.yaml.\n" \
+                      "E.g. for a local DB:\n./run davinci [command] --inputfiledb Upgrade_Bd2KstarMuMu_ldst\n" \
+                      "Phys/DaVinci/options/DaVinciDB-Example.yaml.\n" \
                       "E.g. for TestFileDB:\n./run davinci [command] --inputfiledb Upgrade_Bd2KstarMuMu -"
 joboptfile_helper = "Option file containing the job information (.yaml, .py)"
 simplejob_helper = "Option for running a simple DaVinci job without any specific configuration (.py)."