add new line to DEPRECATION_WARNING

Author: damhuonglan

ph5/utilities/metadatatoph5.py

@@ -26,7 +26,7 @@
 DEPRECATION_WARNING = (
     'metadatatoph5 is no longer supported by the PH5 software. '
     'Please use different functions to format data as PH5.\n\n'
-    'To force running the command anyway, please use flag --force')
+    'To force running the command anyway, please use flag --force\n\n')
 
 
 def is_ph5_array_csv(fh):

ph5/utilities/obspytoph5.py

@@ -23,7 +23,7 @@
 DEPRECATION_WARNING = (
     'mstoph5 is no longer supported by the PH5 software. '
     'Please use different functions to format data as PH5.\n\n'
-    'To force running the command anyway, please use flag --force')
+    'To force running the command anyway, please use flag --force\n\n')
 
 
 class ObspytoPH5Error(Exception):

ph5/utilities/segy2ph5.py

@@ -22,7 +22,7 @@
 DEPRECATION_WARNING = (
     'segy2ph5 is no longer supported by the PH5 software. '
     'Please use different functions to format data as PH5.\n\n'
-    'To force running the command anyway, please use flag --force')
+    'To force running the command anyway, please use flag --force\n\n')
 
 MAX_PH5_BYTES = 1073741824 * .5  # 1/2GB (1024 X 1024 X 1024 X .5)
 DAS_INFO = {}