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-rw-r--r--src/nix-env/help.txt2
-rw-r--r--src/nix-hash/help.txt2
-rw-r--r--src/nix-instantiate/help.txt2
-rw-r--r--src/nix-store/help.txt2
4 files changed, 4 insertions, 4 deletions
diff --git a/src/nix-env/help.txt b/src/nix-env/help.txt
index 72fc4f13e..d20c366cb 100644
--- a/src/nix-env/help.txt
+++ b/src/nix-env/help.txt
@@ -1,4 +1,4 @@
-nix-env [OPTIONS...] [ARGUMENTS...]
+Usage: nix-env [OPTIONS...] [ARGUMENTS...]
`nix-env' is a tool to manipulate Nix user environments.
diff --git a/src/nix-hash/help.txt b/src/nix-hash/help.txt
index 082cc7571..6c166f499 100644
--- a/src/nix-hash/help.txt
+++ b/src/nix-hash/help.txt
@@ -1,4 +1,4 @@
-nix-hash [OPTIONS...] [FILES...]
+Usage: nix-hash [OPTIONS...] [FILES...]
`nix-hash' computes and prints cryptographic hashes for the specified
files.
diff --git a/src/nix-instantiate/help.txt b/src/nix-instantiate/help.txt
index 5b9d82aa9..45607b71a 100644
--- a/src/nix-instantiate/help.txt
+++ b/src/nix-instantiate/help.txt
@@ -1,4 +1,4 @@
-nix-instantiate [OPTIONS...] [FILES...]
+Usage: nix-instantiate [OPTIONS...] [FILES...]
`nix-instantiate' turns Nix expressions into store derivations.
diff --git a/src/nix-store/help.txt b/src/nix-store/help.txt
index 074745813..0e04926af 100644
--- a/src/nix-store/help.txt
+++ b/src/nix-store/help.txt
@@ -1,4 +1,4 @@
-nix-store [OPTIONS...] [ARGUMENTS...]
+Usage: nix-store [OPTIONS...] [ARGUMENTS...]
`nix-store' is a tool to manipulate the Nix store.