Fixed minor typo in docs (#3359)

docs/content/manual/dev/manual.yml

@@ -3333,7 +3333,7 @@ sections:
 
           Outputs one new input.
 
-          Note that when using `input` it is generally be necessary to
+          Note that when using `input` it is generally necessary to
           invoke jq with the `-n` command-line option, otherwise
           the first entity will be lost.
 

docs/content/manual/v1.7/manual.yml

@@ -3239,7 +3239,7 @@ sections:
 
           Outputs one new input.
 
-          Note that when using `input` it is generally be necessary to
+          Note that when using `input` it is generally necessary to
           invoke jq with the `-n` command-line option, otherwise
           the first entity will be lost.
 

docs/content/manual/v1.8/manual.yml

@@ -3333,7 +3333,7 @@ sections:
 
           Outputs one new input.
 
-          Note that when using `input` it is generally be necessary to
+          Note that when using `input` it is generally necessary to
           invoke jq with the `-n` command-line option, otherwise
           the first entity will be lost.
 

jq.1.prebuilt

@@ -3729,7 +3729,7 @@ Most jq builtins are referentially transparent, and yield constant and repeatabl
 Outputs one new input\.
 .
 .P
-Note that when using \fBinput\fR it is generally be necessary to invoke jq with the \fB\-n\fR command\-line option, otherwise the first entity will be lost\.
+Note that when using \fBinput\fR it is generally necessary to invoke jq with the \fB\-n\fR command\-line option, otherwise the first entity will be lost\.
 .
 .IP "" 4
 .