doc: Minor wordsmithing to COPY docs

Perform some minor wordsmithing on two sentences in the COPY documentation
to make them clearer.

While there, also ensure to wrap a few occurrences of CSV in 
which were missing this.

Reported-by: Eric Mutta 
Reviewed-by: Tom Lane 
Discussion: https://postgr.es/m/166104548566.654.11680826843612576896@wrigleys.postgresql.org

diff --git a/doc/src/sgml/ref/copy.sgml b/doc/src/sgml/ref/copy.sgml
index 63afa0d97e08ae990a27b8d32c65529b364830f0..c25b52d0cb277e463620c96433afcc2f2a744efa 100644 (file)
--- a/doc/src/sgml/ref/copy.sgml
+++ b/doc/src/sgml/ref/copy.sgml
@@ -157,10 +157,10 @@ COPY { table_name [ ( 
      
      
       Note that the command is invoked by the shell, so if you need to pass
-      any arguments to shell command that come from an untrusted source, you
+      any arguments that come from an untrusted source, you
       must be careful to strip or escape any special characters that might
       have a special meaning for the shell. For security reasons, it is best
-      to use a fixed command string, or at least avoid passing any user input
+      to use a fixed command string, or at least avoid including any user input
       in it.
      
     
@@ -227,7 +227,7 @@ COPY { table_name [ ( 
      
       Note that all other sessions will immediately be able to see the data
       once it has been successfully loaded. This violates the normal rules
-      of MVCC visibility and users specifying should be aware of the
+      of MVCC visibility and users should be aware of the
       potential problems this might cause.
      
     
@@ -708,7 +708,7 @@ COPY count
     Separated Value (CSV) file format used by many other
     programs, such as spreadsheets. Instead of the escaping rules used by
     PostgreSQL's standard text format, it
-    produces and recognizes the common CSV escaping mechanism.
+    produces and recognizes the common CSV escaping mechanism.
    
 
    
@@ -766,7 +766,7 @@ COPY count
 
    
     
-     CSV format will both recognize and produce CSV files with quoted
+     CSV format will both recognize and produce CSV files with quoted
      values containing embedded carriage returns and line feeds. Thus
      the files are not strictly one line per table row like text-format
      files.
@@ -775,7 +775,7 @@ COPY count
 
    
     
-     Many programs produce strange and occasionally perverse CSV files,
+     Many programs produce strange and occasionally perverse CSV files,
      so the file format is more a convention than a standard. Thus you
      might encounter some files that cannot be imported using this
      mechanism, and COPY might produce files that other