cmm: limited the message locations for the new cmm parameters to those that make sense

README.md

@@ -65,7 +65,7 @@ cmm question [-t OTAGS]... [-k ATAGS]... [-x XTAGS]... [-o OUTTAGS]... [-A AI_ID
 * `-O, --overwrite`: Overwrite existing messages when repeating them
 * `-s, --source-text FILE`: Add content of a file to the query
 * `-S, --source-code FILE`: Add source code file content to the chat history
-* `-l, --location {cache,db,all}`: Use given location when building the chat history (default: 'db')
+* `-l, --location {disk,cache,db,all}`: Use given location when building the chat history (default: 'db')
 * `-g, --glob GLOB`: Filter message files using the given glob pattern
 
 #### Hist
@@ -85,8 +85,6 @@ cmm hist [--print | --convert FORMAT] [-t OTAGS]... [-k ATAGS]... [-x XTAGS]...
 * `-S, --source-code-only`: Only print embedded source code
 * `-A, --answer SUBSTRING`: Filter for answer substring
 * `-Q, --question SUBSTRING`: Filter for question substring
-* `-l, --location {cache,db,all}`: Use given location when building the chat history (default: 'db')
-* `-g, --glob GLOB`: Filter message files using the given glob pattern
 
 #### Tags