Update documentation.

doc/etc-hackerbase

@@ -10,7 +10,7 @@ apikeys-file /root/sap/apikey.ntlm
 bank-dir /root/sap/
 
 # Where to find last checked Fio transaction id
-jendasap-checked /root/sap/checked.ntlm  
+checked-file /root/sap/checked.ntlm  
 
 # Global sender for any emails sent by the system
 email-from Brmlab - Rada <rada@brmlab.cz>

doc/formats.md

@@ -130,7 +130,7 @@ are used to set initial values for runtime parameters:
 
 * members-directory
 * apikeys-file
-* jendasap-checked
+* checked-file
 * bank-dir
 * email-from
 * summary-mailto

doc/hackerbase.1

@@ -398,10 +398,9 @@ bank API.
 
 .SS Last Checked Transaction ID File
 
-A file specified under the "jendasap-checked" key in
-\fBCONFIGURATION\fR or given as command-line option \fB\-checked\fR
-contains the ID of the last checked bank transaction across all bank
-account statements.
+A file specified under the "checked-file" key in \fBCONFIGURATION\fR
+or given as command-line option \fB\-checked\fR contains the ID of the
+last checked bank transaction across all bank account statements.
 
 When checking for \fB\-unpaired\fR transactions, only transactions
 with ID greater than the numeric value stored in this file are
@@ -436,7 +435,7 @@ apikeys-file /root/sap/apikey.ntlm
 bank-dir /root/sap/
 
 # Where to find last checked Fio transaction id
-jendasap-checked /root/sap/checked.ntlm  
+checked-file /root/sap/checked.ntlm  
 
 # Global sender for any emails sent by the system
 email-from Brmlab - Rada <rada@brmlab.cz>

doc/specification.md

@@ -68,7 +68,7 @@ configuration values.
 
 *apikeys-file*
 
-*jendasap-checked*
+*checked-file*
 
 *bank-dir*